81617404

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{168631}}^1$

素因数の和:168657

約数の個数: 18

約数和(自身を含む): 156996392

約数和(自身を除く): 75378988

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 168631, 337262, 674524, 1854941, 3709882, 7419764, 20404351, 40808702, 81617404]

約数ペア:

[(1, 81617404), (2, 40808702), (4, 20404351), (11, 7419764), (22, 3709882), (44, 1854941), (121, 674524), (242, 337262), (484, 168631)]