218657164

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{451771}}^1$

素因数の和:451797

約数の個数: 18

約数和(自身を含む): 420599732

約数和(自身を除く): 201942568

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 451771, 903542, 1807084, 4969481, 9938962, 19877924, 54664291, 109328582, 218657164]

約数ペア:

[(1, 218657164), (2, 109328582), (4, 54664291), (11, 19877924), (22, 9938962), (44, 4969481), (121, 1807084), (242, 903542), (484, 451771)]