输入一个正整数求它的所有约数  除了1 和 它自己本身；例如：输入一个12   它的约数就有 2、3、4、6；
请高手把代码发下，谢谢！

static void Main(string[] args)
        {
            int n;
            
            Console.WriteLine("请输入一个正整数：");
            n = int.Parse(Console.ReadLine());
            if (n % 2 == 0)
            {
                for (int i = 2; i <= n / 2; i++)
                {
                    if (n % i == 0)
                    { Console.WriteLine("{0}", i); }
                }
            }
           
            if (n % 2 == 1)
            {
                for (int i = 3; i <= (n - 1) / 2; i++)
                {
                    if (n % i == 0)
                    { Console.WriteLine("{0}", i); }
                }
            }
            
               
            
            Console.ReadLine();

static void Main(string[] args)
        {
            int n;
            
            Console.WriteLine("请输入一个正整数：");
            n = int.Parse(Console.ReadLine());
            if (n % 2 == 0)
            {
                for (int i = 2; i <= n / 2; i++)
                {
                    if (n % i == 0)
                    { Console.WriteLine("{0}", i); }
                }
            }
           
            if (n % 2 == 1)
            {
                for (int i = 3; i <= (n - 1) / 2; i++)
                {
                    if (n % i == 0)
                    { Console.WriteLine("{0}", i); }
                }
            }
            
               
            
            Console.ReadLine();