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A139574
Numbers with 43 divisors.
18
4398046511104, 109418989131512359209, 227373675443232059478759765625, 311973482284542371301330321821976049, 54763699237492901685126120802225273763666521, 61040881526285814362156628321386486455989674569
OFFSET
1,1
COMMENTS
42nd 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.
FORMULA
a(n)=A000040(n)^(43-1)=A000040(n)^42.
MATHEMATICA
Prime[Range[9]]^42 (* Vladimir Joseph Stephan Orlovsky, May 05 2011 *)
PROG
(PARI) a(n)=prime(n)^42 \\ Charles R Greathouse IV, Jun 19 2016
KEYWORD
nonn,easy
AUTHOR
Omar E. Pol, May 09 2008
EXTENSIONS
More terms from R. J. Mathar, May 11 2008
STATUS
approved