21816997945

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1\times {\mathrm{437083}}^1$

素因数の和:437304

約数の個数: 16

約数和(自身を含む): 26749540800

約数和(自身を除く): 4932542855

約数列:

[1, 5, 67, 149, 335, 745, 9983, 49915, 437083, 2185415, 29284561, 65125367, 146422805, 325626835, 4363399589, 21816997945]

約数ペア:

[(1, 21816997945), (5, 4363399589), (67, 325626835), (149, 146422805), (335, 65125367), (745, 29284561), (9983, 2185415), (49915, 437083)]