21551288

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{244901}}^1$

素因数の和:244918

約数の個数: 16

約数和(自身を含む): 44082360

約数和(自身を除く): 22531072

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 244901, 489802, 979604, 1959208, 2693911, 5387822, 10775644, 21551288]

約数ペア:

[(1, 21551288), (2, 10775644), (4, 5387822), (8, 2693911), (11, 1959208), (22, 979604), (44, 489802), (88, 244901)]