The Odd Factor Sum of a positive integer is the sum of all its Odd Factors.

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The Odd Factor Sum of a positive integer is the sum of all its Odd Factors. If positive integer \(P\) is divisible by \(8\) numbers in total, one of which is \(42,\) what is the Odd Factor Sum of \(P?\)

A. \(20\)
B. \(21\)
C. \(31\)
D. \(32\)
E. Cannot be determined

Answer: D

Source: e-GMAT
Source: — Problem Solving |