

A207036


Numbers k such that the sum of divisors of k is a multiple of 24.


1



14, 15, 23, 30, 33, 35, 42, 46, 47, 51, 54, 55, 56, 60, 62, 66, 69, 70, 71, 77, 78, 87, 92, 94, 95, 102, 105, 110, 114, 115, 119, 120, 123, 126, 132, 135, 138, 140, 141, 142, 143, 154, 155, 158, 159, 161, 165, 167, 168, 174, 177, 182, 184, 186, 187, 188
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OFFSET

1,1


LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..10000


EXAMPLE

33 is in the sequence because the divisors of 33 are 1, 3, 11, 33 and the sum of divisors of 33 is 1+3+11+33 = A000203(33) = 48 and 48 is a multiple de 24 because 48 divided by 24 gives a positive integer.


MATHEMATICA

Select[Range[188], Mod[DivisorSigma[1, #], 24] == 0 &] (* T. D. Noe, Feb 27 2012 *)


CROSSREFS

Cf. A000203, A008606, A183010, A207374.
Sequence in context: A085816 A090066 A084429 * A087430 A085900 A075659
Adjacent sequences: A207033 A207034 A207035 * A207037 A207038 A207039


KEYWORD

nonn


AUTHOR

Omar E. Pol, Feb 20 2012


STATUS

approved



