21355532

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{44123}}^1$

素因数の和:44149

約数の個数: 18

約数和(自身を含む): 41079444

約数和(自身を除く): 19723912

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 44123, 88246, 176492, 485353, 970706, 1941412, 5338883, 10677766, 21355532]

約数ペア:

[(1, 21355532), (2, 10677766), (4, 5338883), (11, 1941412), (22, 970706), (44, 485353), (121, 176492), (242, 88246), (484, 44123)]