#include<stdio.h>#include<math.h>int main(){int i=1,a,n,p,k=2;scanf("%d",&a);printf("n的所有素数因子：");for(i=1;i<=n/2;i++)if(a%i==0){p=a/i;while(k<=sqrt(p)){if(k%2==0)break;if(i>sqrt(n)&&n>1)printf("%d",p);k++;}
} return 0;
}