81649348

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{168697}}^1$

素因数の和:168723

約数の個数: 18

約数和(自身を含む): 157057838

約数和(自身を除く): 75408490

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 168697, 337394, 674788, 1855667, 3711334, 7422668, 20412337, 40824674, 81649348]

約数ペア:

[(1, 81649348), (2, 40824674), (4, 20412337), (11, 7422668), (22, 3711334), (44, 1855667), (121, 674788), (242, 337394), (484, 168697)]