Perfect number series

Write a recursive function to print perfect numbers up to given number.

#include<stdio.h>
int Perfect_Rec(int,int,int);
int main()
{
	int num;
	int i;
	printf("Enter Number = ");
	scanf("%d",&num);
	for(i=1;i<num;i++)
	{
		if(i == Perfect_Rec(i,1,0))
		printf("%d \n",Perfect_Rec(i,1,0));
	}
	return 0;
}
int Perfect_Rec(int n,int r,int s)
{
	if(r < n)
	{
		if(!(n % r))
			s = s + r;
		r = r + 1;
		Perfect_Rec(n,r,s);
	}
	else
		return s;
}

Output

Enter Number = 10000
6
28
496
8128