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A137486 Numbers with 23 divisors. 18
4194304, 31381059609, 2384185791015625, 3909821048582988049, 81402749386839761113321, 3211838877954855105157369, 1174562876521148458974062689, 13569980418174090907801371961 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Maple implementation: see A030513.

22nd powers of primes. The n-th number with p divisors is equal to the n-th prime raised to power p-1, where p is prime. - Omar E. Pol, May 06 2008

LINKS

T. D. Noe, Table of n, a(n) for n = 1..1000

OEIS Wiki, Index entries for number of divisors

FORMULA

A000005(a(n))=23.

a(n)=A000040(n)^(23-1)=A000040(n)^(22). - Omar E. Pol, May 06 2008

MATHEMATICA

Prime[Range[15]]^22 (* Vladimir Joseph Stephan Orlovsky, May 05 2011 *)

PROG

(PARI) a(n)=prime(n)^22 \\ Charles R Greathouse IV, Jun 19 2016

CROSSREFS

Cf. A137485 (22 divs), A137487 (24 divs).

Sequence in context: A016907 A017708 A010810 * A016967 A017039 A017123

Adjacent sequences:  A137483 A137484 A137485 * A137487 A137488 A137489

KEYWORD

nonn,easy

AUTHOR

R. J. Mathar, Apr 22 2008

STATUS

approved

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Last modified October 21 11:42 EDT 2019. Contains 328296 sequences. (Running on oeis4.)