A018736 - OEIS

%I #26 Jan 12 2025 06:36:25

%S 1,3,5,7,9,15,21,27,35,45,63,105,135,189,315,945

%N Divisors of 945.

%C 1 = 1/3 + 1/5 + 1/7 + 1/9 + 1/15 + 1/21 + 1/27 + 1/35 + 1/45 + 1/105 + 1/945. - _Arkadiusz Wesolowski_, Apr 08 2012

%C 945 is the smallest odd abundant number. - _Omar E. Pol_, Jan 12 2025

%H <a href="/index/Di#divisors">Index entries for sequences related to divisors of numbers</a>

%p with(numtheory): convert(divisors(945),list); # _Muniru A Asiru_, Jul 04 2018

%t Divisors[945] (* _Arkadiusz Wesolowski_, Apr 08 2012 *)

%o (Sage) divisors(945); # _Zerinvary Lajos_, Jun 30 2009

%o (PARI) divisors(945) \\ _Charles R Greathouse IV_, Apr 08 2012

%o (GAP) DivisorsInt(945); # _Muniru A Asiru_, Jul 04 2018

%Y Cf. A005231.

%K nonn,fini,full,easy

%O 1,2

%A _N. J. A. Sloane_