20865256

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{153421}}^1$

素因数の和:153444

約数の個数: 16

約数和(自身を含む): 41423940

約数和(自身を除く): 20558684

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 153421, 306842, 613684, 1227368, 2608157, 5216314, 10432628, 20865256]

約数ペア:

[(1, 20865256), (2, 10432628), (4, 5216314), (8, 2608157), (17, 1227368), (34, 613684), (68, 306842), (136, 153421)]