Function to find the sum of divisors
def power ( x , y ) : NEW_LINE INDENT if ( y == 0 ) : NEW_LINE INDENT return 1 NEW_LINE DEDENT if ( y % 2 == 0 ) : NEW_LINE INDENT return ( power ( x , y // 2 ) * power ( x , y // 2 ) ) NEW_LINE DEDENT return ( x * power ( x , y // 2 ) * power ( x , y // 2 ) ) NEW_LINE DEDENT