View Compilation Error

0_0_36837770_8507.cpp: In function 'int main()':
0_0_36837770_8507.cpp:12:9: error: 'll' was not declared in this scope
         ll ans=1;
         ^
0_0_36837770_8507.cpp:17:17: error: 'ans' was not declared in this scope
                 ans+=i;
                 ^
0_0_36837770_8507.cpp:21:20: error: invalid operands of types 'int' and '__gnu_cxx::__enable_if<true, double>::__type {aka double}' to binary 'operator%'
         if(n%sqrt(n)==0)
                    ^
0_0_36837770_8507.cpp:22:9: error: 'ans' was not declared in this scope
         ans+=sqrt(n);
         ^
0_0_36837770_8507.cpp:23:23: error: 'ans' was not declared in this scope
         printf("%lld",ans);
                       ^