21458710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23581}}^1$

素因数の和:23608

約数の個数: 32

約数和(自身を含む): 47541312

約数和(自身を除く): 26082602

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 23581, 47162, 117905, 165067, 235810, 306553, 330134, 613106, 825335, 1532765, 1650670, 2145871, 3065530, 4291742, 10729355, 21458710]

約数ペア:

[(1, 21458710), (2, 10729355), (5, 4291742), (7, 3065530), (10, 2145871), (13, 1650670), (14, 1532765), (26, 825335), (35, 613106), (65, 330134), (70, 306553), (91, 235810), (130, 165067), (182, 117905), (455, 47162), (910, 23581)]