#include using namespace std; typedef signed long long ll; #undef _P #define _P(...) (void)printf(__VA_ARGS__) #define FOR(x,to) for(x=0;x<(to);x++) #define FORR(x,arr) for(auto& x:arr) #define FORR2(x,y,arr) for(auto& [x,y]:arr) #define ITR(x,c) for(__typeof(c.begin()) x=c.begin();x!=c.end();x++) #define ALL(a) (a.begin()),(a.end()) #define ZERO(a) memset(a,0,sizeof(a)) #define MINUS(a) memset(a,0xff,sizeof(a)) //------------------------------------------------------- int T; ll N; ll modpow(ll a, ll n,ll mo) { ll r=1;a%=mo; while(n) r=r*((n%2)?a:1)%mo,a=a*a%mo,n>>=1; return r; } void solve() { int i,j,k,l,r,x,y; string s; cin>>T; while(T--) { cin>>N; N=2*N-1; y=N; int v=1; for(x=2;x*x<=y;x++) { j=1; while(y%x==0) y/=x,j*=x; if(j>1) v*=j/x*(x-1); } if(y>1) v*=(y-1); ll mi=3LL<<30; for(x=1;x*x<=v;x++) if(v%x==0) { if(x