hard · GMAT Quant
For a positive integer n, let d(n) represent the number of distinct positive divisors of n.
If n = p^aq^b, where p and q are distinct prime numbers and a and b are integers greater than 1, and d(n²) = 63, what is the value of d(n)?
- 20
- 22
- 18
- 12
- 15
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