21353684

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{485311}}^1$

素因数の和:485326

約数の個数: 12

約数和(自身を含む): 40766208

約数和(自身を除く): 19412524

約数列:

[1, 2, 4, 11, 22, 44, 485311, 970622, 1941244, 5338421, 10676842, 21353684]

約数ペア:

[(1, 21353684), (2, 10676842), (4, 5338421), (11, 1941244), (22, 970622), (44, 485311)]