21871228

素因数分解:

$2^2\times {\mathrm{107}}^1\times {\mathrm{137}}^1\times {\mathrm{373}}^1$

素因数の和:621

約数の個数: 24

約数和(自身を含む): 39018672

約数和(自身を除く): 17147444

約数列:

[1, 2, 4, 107, 137, 214, 274, 373, 428, 548, 746, 1492, 14659, 29318, 39911, 51101, 58636, 79822, 102202, 159644, 204404, 5467807, 10935614, 21871228]

約数ペア:

[(1, 21871228), (2, 10935614), (4, 5467807), (107, 204404), (137, 159644), (214, 102202), (274, 79822), (373, 58636), (428, 51101), (548, 39911), (746, 29318), (1492, 14659)]