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%I #14 Oct 18 2019 14:04:32
%S 1,7,13,19,91,133,247,1729
%N Divisors of 1729, the 2nd taxicab number (also called the Hardy-Ramanujan number).
%C Note that 19 * 91 = 1729. For products of n-th prime and n-th prime written backwards, see A133019.
%H <a href="/index/Di#divisors">Index entries for sequences related to divisors of numbers</a>
%e 7 * 247 = 1729 and 13 * 133 = 1729.
%t Divisors[1729] (* _Alonso del Arte_, Oct 11 2019 *)
%o (PARI) divisors(1729) \\ _Charles R Greathouse IV_, Jun 21 2017
%Y Cf. A000005, A018487. Taxicab numbers: A011541.
%K easy,fini,full,nonn
%O 1,2
%A _Omar E. Pol_, Oct 23 2007, Nov 07 2007
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