KöMaL 2022 B5234
A positive integer is defined to be a mythical number if each of its divisors is 2 smaller than a prime number. For example, 15 is a mythical number. What is the largest possible number of divisors that a mythical number may have? Find all mythical numbers that have the maximum number of divisors.
Official text KöMaL. Quoted with source.
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