import java.util.*;
import java.io.*;
import java.math.*;
public class Perfect
{
static Scanner console = new Scanner(System.in);
public static void main(String[] args)
{
int x;
long i,n,sum =0 ;
System.out.print("Enter a number:");
x = console.nextInt();
for (long n = 1;true; n += x) {
for (i = 1; i < n; i++)
if (n % i == 0)
sum += i;
System.out.println("The sum of the divisors of " + n + " is " + sum);
if (sum == n) break;
}
}
}
example , the positive proper divisor of 28 are 1,2,4,7,14 and 1+2+4+7+14 = 28 in ani mo labas 28 is perfect