28185969

素因数分解:

$3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 44142336

約数和(自身を除く): 15956367

約数列:

[1, 3, 7, 21, 97, 101, 137, 291, 303, 411, 679, 707, 959, 2037, 2121, 2877, 9797, 13289, 13837, 29391, 39867, 41511, 68579, 93023, 96859, 205737, 279069, 290577, 1342189, 4026567, 9395323, 28185969]

約数ペア:

[(1, 28185969), (3, 9395323), (7, 4026567), (21, 1342189), (97, 290577), (101, 279069), (137, 205737), (291, 96859), (303, 93023), (411, 68579), (679, 41511), (707, 39867), (959, 29391), (2037, 13837), (2121, 13289), (2877, 9797)]