21581154

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{19031}}^1$

素因数の和:19052

約数の個数: 40

約数和(自身を含む): 55268928

約数和(自身を除く): 33687774

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 378, 567, 1134, 19031, 38062, 57093, 114186, 133217, 171279, 266434, 342558, 399651, 513837, 799302, 1027674, 1198953, 1541511, 2397906, 3083022, 3596859, 7193718, 10790577, 21581154]

約数ペア:

[(1, 21581154), (2, 10790577), (3, 7193718), (6, 3596859), (7, 3083022), (9, 2397906), (14, 1541511), (18, 1198953), (21, 1027674), (27, 799302), (42, 513837), (54, 399651), (63, 342558), (81, 266434), (126, 171279), (162, 133217), (189, 114186), (378, 57093), (567, 38062), (1134, 19031)]