while ( a % 2 == 0){

        a = a / 2;
        b++;
    }
    if ( b != 0 ) p = b + 1;
    k = 3;
    while ( a != 1 ){

        b = 0;
        while ( a % k == 0 ){

            a = a / k;
            b++;
        }
    if ( b != 0 ) p = p * ( b + 1);
    k = k + 2;
    }