OFFSET
1,2
COMMENTS
The n-th perfect number divided by 2 (A133028(n)) has 2*A090748(n) divisors, then this sequence has 24 members. First 12 members are the first 12 powers of 2 A000079. Last 12 members are multiples of 5th Mersenne prime A000668(5)=8191. a(n) written in base 2 has n digits. See A138825 for the structure of this sequence.
MATHEMATICA
Divisors[16775168] (* Wesley Ivan Hurt, Mar 20 2022 *)
PROG
(PARI) divisors(16775168) \\ Charles R Greathouse IV, Jun 22 2017
CROSSREFS
KEYWORD
easy,fini,full,nonn
AUTHOR
Omar E. Pol, Mar 31 2008
STATUS
approved