no. of divisors of a number =n ..then find the no. of proper divisors of the number? in some places ,it is given n-1; (excluding n) in some other it is given n-2;(Excluding 1 and n). which one is correct??
no. of divisors of a number =n ..then find the no. of proper divisors of the number?
in some places ,it is given n-1; (excluding n)
in some other it is given n-2;(Excluding 1 and n).
which one is correct??