21142792

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{240259}}^1$

素因数の和:240276

約数の個数: 16

約数和(自身を含む): 43246800

約数和(自身を除く): 22104008

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 240259, 480518, 961036, 1922072, 2642849, 5285698, 10571396, 21142792]

約数ペア:

[(1, 21142792), (2, 10571396), (4, 5285698), (8, 2642849), (11, 1922072), (22, 961036), (44, 480518), (88, 240259)]