20871604

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{6803}}^1$

素因数の和:6879

約数の個数: 24

約数和(自身を含む): 40007520

約数和(自身を除く): 19135916

約数列:

[1, 2, 4, 13, 26, 52, 59, 118, 236, 767, 1534, 3068, 6803, 13606, 27212, 88439, 176878, 353756, 401377, 802754, 1605508, 5217901, 10435802, 20871604]

約数ペア:

[(1, 20871604), (2, 10435802), (4, 5217901), (13, 1605508), (26, 802754), (52, 401377), (59, 353756), (118, 176878), (236, 88439), (767, 27212), (1534, 13606), (3068, 6803)]