21188566

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{2861}}^1$

素因数の和:2916

約数の個数: 24

約数和(自身を含む): 37984464

約数和(自身を除く): 16795898

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 529, 1058, 2861, 3703, 5722, 7406, 20027, 40054, 65803, 131606, 460621, 921242, 1513469, 3026938, 10594283, 21188566]

約数ペア:

[(1, 21188566), (2, 10594283), (7, 3026938), (14, 1513469), (23, 921242), (46, 460621), (161, 131606), (322, 65803), (529, 40054), (1058, 20027), (2861, 7406), (3703, 5722)]