28255227

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{97}}^2$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 51109632

約数和(自身を除く): 22854405

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 97, 143, 231, 273, 291, 429, 679, 1001, 1067, 1261, 2037, 3003, 3201, 3783, 7469, 8827, 9409, 13871, 22407, 26481, 28227, 41613, 65863, 97097, 103499, 122317, 197589, 291291, 310497, 366951, 724493, 856219, 1345487, 2173479, 2568657, 4036461, 9418409, 28255227]

約数ペア:

[(1, 28255227), (3, 9418409), (7, 4036461), (11, 2568657), (13, 2173479), (21, 1345487), (33, 856219), (39, 724493), (77, 366951), (91, 310497), (97, 291291), (143, 197589), (231, 122317), (273, 103499), (291, 97097), (429, 65863), (679, 41613), (1001, 28227), (1067, 26481), (1261, 22407), (2037, 13871), (3003, 9409), (3201, 8827), (3783, 7469)]