21641912

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{142381}}^1$

素因数の和:142406

約数の個数: 16

約数和(自身を含む): 42714600

約数和(自身を除く): 21072688

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 142381, 284762, 569524, 1139048, 2705239, 5410478, 10820956, 21641912]

約数ペア:

[(1, 21641912), (2, 10820956), (4, 5410478), (8, 2705239), (19, 1139048), (38, 569524), (76, 284762), (152, 142381)]