giúp em với ạ em cảm ơn ạ

#include <iostream>
#include <fstream>
#include <cmath>
using namespace std;
int tongUoc(int n) {
    int t=1;
    for (int i=2;i*i<=n;++i) {
        if (n%i==0) {
            t+=i;
            if (i*i!=n) {
                t+=n/i;
            }
        }
    }
    return t;
}
int main() {
    int n;
    ifstream inputFile("hanhphuc.inp");
    ofstream outputFile("hanhphuc.out");
    inputFile>>n;
    for (int i=2;i<=n;++i) {
        if (tongUoc(i)==i) {
            outputFile<<i<<" ";
        }
    }
    if (outputFile.tellp()==0) { 
        outputFile<<0;
    }
    inputFile.close();
    outputFile.close();
    return 0;
}

#include<bits/c++io.h>
#include<iostream>
#define ll long long
using namespace std;

bool check(ll n){
    ll s=0,j;
    for (ll i=1;i<=sqrt(n);++i){
        if (n%i==0){
            j=n/i;
            if (j==i) s+=i;
            else s+=j+i;
        }
    }
    s-=n;
    if (s==n) return true;
    else return false;
}

int main(){
    freopen("hanhphuc.inp","r",stdin);
    freopen("hanhphuc.out","w",stdout);
    ll n;
    cin>>n;
    //meothinhle
    for (ll i=6;i<=n;++i){
        if (check(i)) cout<<i<<" ";
    }
    return 0;
}