View Compilation Error

0_0_39564961_5912.cpp: In function 'int main()':
0_0_39564961_5912.cpp:73:36: error: 'pd' was not declared in this scope
   73 |                                 if(pd(i)) ++ans;
      |                                    ^~
0_0_39564961_5912.cpp:74:48: error: 'pd' was not declared in this scope
   74 |                                 if(i!=(num/i)&&pd(num/i)) ++ans;
      |                                                ^~