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A197309 Divisors of the 9th repunit 111111111. 2

%I #15 Jun 21 2017 23:16:29

%S 1,3,9,37,111,333,333667,1001001,3003003,12345679,37037037,111111111

%N Divisors of the 9th repunit 111111111.

%C The prime factorization of (10^9 - 1)/9 is 3^2 * 37 * 333667. - _Alonso del Arte_, Apr 27 2014

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

%t Divisors[(10^9 - 1)/9] (* _Alonso del Arte_, Apr 27 2014 *)

%o (PARI) divisors(10^9\9) \\ _Charles R Greathouse IV_, Jun 21 2017

%Y Cf. A109492, A197308, A070529, A018282, A018766, A027894, A027893, A027892, A027891, A027890, A027889, A027895.

%K nonn,fini,full,easy

%O 1,2

%A _M. F. Hasler_, Oct 13 2011

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Last modified April 20 12:36 EDT 2024. Contains 371844 sequences. (Running on oeis4.)