20655668

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42677}}^1$

素因数の和:42703

約数の個数: 18

約数和(自身を含む): 39733218

約数和(自身を除く): 19077550

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42677, 85354, 170708, 469447, 938894, 1877788, 5163917, 10327834, 20655668]

約数ペア:

[(1, 20655668), (2, 10327834), (4, 5163917), (11, 1877788), (22, 938894), (44, 469447), (121, 170708), (242, 85354), (484, 42677)]