#include<iostream>
#include<cstdio>
#include<vector>
#include<algorithm>
#include<cstring>
#include<cmath>
#include<queue>
#include<string>
#include<stack>
#include<set>
#include<map>
#include<sstream>
typedef long long ll;
#define mm(a) memset(a,0,sizeof(a))
#define lr rt<<1
#define rr rt<<1|1
#define tm(a,b,c) max(max(a,b),c)
#define inf 0x3f3f3f3f
#define sync std::ios::sync_with_stdio(false);std::cin.tie(0);
const ll Mod=1e9+7;
using namespace std;
int gcd(int a,int b)
{
    if(b==0)
        return a;
    else
        return gcd(b,a%b);
}
int main()
{
    sync
    int t;
    cin>>t;
    while(t--)
    {
        int v,s=0,sum=0;
        cin>>v;
        int ss=v;
        while(v)
        {
            s+=v%10;
            v/=10;
        }
        int x=gcd(ss,s);
        for(int i=1;i*i<=x;i++)
        {
            if(x%i==0)
                sum+=2;
            if(i*i==x)
                sum--;
        }
        cout<<sum<<endl;
        for(int i=1;i<x;i++)
        {
            if(x%i==0)
                cout<<i<<' ';
        }
        cout<<x<<endl;
    }
    return 0;
}