20898152

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{21589}}^1$

素因数の和:21617

約数の個数: 24

約数和(自身を含む): 43072050

約数和(自身を除く): 22173898

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 242, 484, 968, 21589, 43178, 86356, 172712, 237479, 474958, 949916, 1899832, 2612269, 5224538, 10449076, 20898152]

約数ペア:

[(1, 20898152), (2, 10449076), (4, 5224538), (8, 2612269), (11, 1899832), (22, 949916), (44, 474958), (88, 237479), (121, 172712), (242, 86356), (484, 43178), (968, 21589)]