21528848

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{122323}}^1$

素因数の和:122342

約数の個数: 20

約数和(自身を含む): 45504528

約数和(自身を除く): 23975680

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 122323, 244646, 489292, 978584, 1345553, 1957168, 2691106, 5382212, 10764424, 21528848]

約数ペア:

[(1, 21528848), (2, 10764424), (4, 5382212), (8, 2691106), (11, 1957168), (16, 1345553), (22, 978584), (44, 489292), (88, 244646), (176, 122323)]