21603617

素因数分解:

$7^1\times {\mathrm{17}}^2\times {\mathrm{59}}^1\times {\mathrm{181}}^1$

素因数の和:281

約数の個数: 24

約数和(自身を含む): 26819520

約数和(自身を除く): 5215903

約数列:

[1, 7, 17, 59, 119, 181, 289, 413, 1003, 1267, 2023, 3077, 7021, 10679, 17051, 21539, 52309, 74753, 119357, 181543, 366163, 1270801, 3086231, 21603617]

約数ペア:

[(1, 21603617), (7, 3086231), (17, 1270801), (59, 366163), (119, 181543), (181, 119357), (289, 74753), (413, 52309), (1003, 21539), (1267, 17051), (2023, 10679), (3077, 7021)]