40679821

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{137}}^1\times {\mathrm{251}}^1$

素因数の和:421

約数の個数: 24

約数和(自身を含む): 50912064

約数和(自身を除く): 10232243

約数列:

[1, 7, 13, 91, 137, 169, 251, 959, 1183, 1757, 1781, 3263, 12467, 22841, 23153, 34387, 42419, 162071, 240709, 296933, 447031, 3129217, 5811403, 40679821]

約数ペア:

[(1, 40679821), (7, 5811403), (13, 3129217), (91, 447031), (137, 296933), (169, 240709), (251, 162071), (959, 42419), (1183, 34387), (1757, 23153), (1781, 22841), (3263, 12467)]