21339842

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1\times {\mathrm{701}}^1$

素因数の和:1225

約数の個数: 16

約数和(自身を含む): 33156864

約数和(自身を除く): 11817022

約数列:

[1, 2, 31, 62, 491, 701, 982, 1402, 15221, 21731, 30442, 43462, 344191, 688382, 10669921, 21339842]

約数ペア:

[(1, 21339842), (2, 10669921), (31, 688382), (62, 344191), (491, 43462), (701, 30442), (982, 21731), (1402, 15221)]