C语言程序设计教程（第三版）课后习题6.7 （C语言代码）

解题思路:

注意事项:

参考代码:

#include <stdio.h>

int main(){

   int n;

   int a[1001],index;

   int s;

   scanf("%d", &n);

   for(int i = 6; i <= n; i++){

      s = index = 0;

      for(int j = 1; j <= i/2; j++){

         if(i%j == 0){

            a[index] = j;

            s += a[index];

            index++;

         }

      }

      if(s == i){

         for(int j = 0; j < index; j++){

            if(j == 0)

               printf("%d its factors are ", i);

            printf("%d ", a[j]);

         }

         printf("\n");

      }

   }

   return 0;

}