#include <bits/stdc++.h>
using namespace std;
int main(){
	int sum;
	for(int i=2;i<=1000;i++){
		sum=0;
		vector<int> factor;
		for(int j=1;j<i;j++){
			if(i%j==0) {
				sum+=j;
				factor.push_back(j);
			}
				
		}
		if(i==sum) {
			cout<<i<<endl;
			for(int k=0;k<factor.size();k++){
				cout<<factor[k];
				if(k!=factor.size()-1) 
					cout<<" ";
			}
			cout<<endl;
		}
		
		
	}
	
	return 0;
	
}