21365617

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1973}}^1$

素因数の和:2017

約数の個数: 24

約数和(自身を含む): 28354536

約数和(自身を除く): 6988919

約数列:

[1, 7, 13, 17, 49, 91, 119, 221, 637, 833, 1547, 1973, 10829, 13811, 25649, 33541, 96677, 179543, 234787, 436033, 1256801, 1643509, 3052231, 21365617]

約数ペア:

[(1, 21365617), (7, 3052231), (13, 1643509), (17, 1256801), (49, 436033), (91, 234787), (119, 179543), (221, 96677), (637, 33541), (833, 25649), (1547, 13811), (1973, 10829)]