Problem 56743. Count the unitary divisors of a number

Cody Problem 56738 asks for a list of the unitary divisors of a number. For this problem, write a function to count the unitary divisors of a number. For example, the unitary divisors of 18 are 1, 2, 9, and 18; therefore, the number of unitary divisors is 4.
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70.59% Correct | 29.41% Incorrect
Last Solution submitted on Dec 07, 2025

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number theory sequence

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