81908911

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{241}}^1\times {\mathrm{2111}}^1$

素因数の和:2382

約数の個数: 16

約数和(自身を含む): 98131968

約数和(自身を除く): 16223057

約数列:

[1, 7, 23, 161, 241, 1687, 2111, 5543, 14777, 38801, 48553, 339871, 508751, 3561257, 11701273, 81908911]

約数ペア:

[(1, 81908911), (7, 11701273), (23, 3561257), (161, 508751), (241, 339871), (1687, 48553), (2111, 38801), (5543, 14777)]