using System;

​

public class Program

{

    public static void Main()

    {

        int i = 0;

        int total = 0;

        int num = 0;

        Console.WriteLine("Input the  number: ");

        num = int.Parse(Console.ReadLine());

        Console.WriteLine("The divisor: ");

        for (i = 1; i < num; i++)

        {

            if (num % i == 0)

            {

                total = total + i;

                Console.WriteLine(i);

            }

        }

​

        Console.WriteLine("The sum: " + total);

        if (total == num)

            Console.WriteLine("This is a perfect number.");

        else

            Console.WriteLine("This is not a perfect number.");

    }

}