Sample Input: 1 20000 Sample Output: 6 28 496 8128

#include<stdio.h> int main() { int number, i,sum,start,stop; printf("Enter two Numbers: "); scanf("%d %d",&start,&stop); printf("Perfect number between %d and %d:",start,stop); for(number=start;number<=stop;number++) { sum=0; for(i=1; i <= number/2; ++i) { if (number%i == 0) { sum+=i; } } if(sum==number) { printf("%d ",number); } } return 0; }

refer video tutorial

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