20542412

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42443}}^1$

素因数の和:42469

約数の個数: 18

約数和(自身を含む): 39515364

約数和(自身を除く): 18972952

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42443, 84886, 169772, 466873, 933746, 1867492, 5135603, 10271206, 20542412]

約数ペア:

[(1, 20542412), (2, 10271206), (4, 5135603), (11, 1867492), (22, 933746), (44, 466873), (121, 169772), (242, 84886), (484, 42443)]