Number of Odd Divisors
## Formula
For:
$$N=2^a p_2^{a_2}\cdots p_k^{a_k}$$
the number of odd divisors is:
$$(a_2+1)(a_3+1)\cdots(a_k+1)$$
## Usage
- Used to count divisors that are not divisible by $2$.
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CAT Formulas
Permutations & Combinations
Number of Odd Divisors
Number of Odd Divisors
## Formula
For:
$$N=2^a p_2^{a_2}\cdots p_k^{a_k}$$
the number of odd divisors is:
$$(a_2+1)(a_3+1)\cdots(a_k+1)$$
## Usage
- Used to count divisors that are not divisible by $2$.
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