20081644

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{41491}}^1$

素因数の和:41517

約数の個数: 18

約数和(自身を含む): 38629052

約数和(自身を除く): 18547408

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 41491, 82982, 165964, 456401, 912802, 1825604, 5020411, 10040822, 20081644]

約数ペア:

[(1, 20081644), (2, 10040822), (4, 5020411), (11, 1825604), (22, 912802), (44, 456401), (121, 165964), (242, 82982), (484, 41491)]