21804872

素因数分解:

$2^3\times {\mathrm{251}}^1\times {\mathrm{10859}}^1$

素因数の和:11116

約数の個数: 16

約数和(自身を含む): 41050800

約数和(自身を除く): 19245928

約数列:

[1, 2, 4, 8, 251, 502, 1004, 2008, 10859, 21718, 43436, 86872, 2725609, 5451218, 10902436, 21804872]

約数ペア:

[(1, 21804872), (2, 10902436), (4, 5451218), (8, 2725609), (251, 86872), (502, 43436), (1004, 21718), (2008, 10859)]