The number of odd divisors of 128 is

The number of divisors of 7! is

The number of divisors of 7! is

A natural number n has exactly two divisors and (n+1) has three divisors.The number of divisors of (n+2) is

The number of odd divisor of the number N=2^(10). 3^5 .7^2, are a. 16 b. 17 c. 18 d. 20

The number of odd divisor of the number N=2^(10). 3^5 .7^2, are 16 b. 17 c. 18 d. 20

The number of odd proper divisors of 5040, is

The number of odd proper divisors of 5040, is

The number of odd proper divisors of 3^n. 21 ^n is

The number of odd proper divisors of 3^(p)*6^(m)*21^(n) is

The number of odd proper divisors of 3^(p)*6^(q)*15^(r),AA p,q,r, in N , is