Perfect number in c++

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Perfect number code in c++

#include<iostream>

#include<iomanip>

int main(){

  int n,i=1,sum=0;

  cout<<"Enter a number: ";

  scanf("%d",&n);

  while(i<n){

         if(n%i==0)

               sum=sum+i;

              i++;

  }

  if(sum==n)

         cout << i  <<  " is a perfect number";

  else

         cout << i << " is not a perfect number";

  return 0;

}

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