#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;
using ld = long double;
ll intpow(ll a, ll b) {
    ll c = 1;
    while (b) {
        if (b & 1) c = (c * a) % 998244353;
        a *= a;
        a %= 998244353;
        b >>= 1;
    }
    return c % 998244353;
}

int main(){
    ll n;
    cin >> n;

    ll ans = 0;

    for(ll i = 1; i <= n; i++){
        ll a = ll(n/i) % 998244353;
        ans += intpow(a,i);
        ans %= 998244353;
    }

    cout << ans << '\n';

    return 0;
}