21138088

素因数分解:

$2^3\times {\mathrm{101}}^1\times {\mathrm{26161}}^1$

素因数の和:26268

約数の個数: 16

約数和(自身を含む): 40027860

約数和(自身を除く): 18889772

約数列:

[1, 2, 4, 8, 101, 202, 404, 808, 26161, 52322, 104644, 209288, 2642261, 5284522, 10569044, 21138088]

約数ペア:

[(1, 21138088), (2, 10569044), (4, 5284522), (8, 2642261), (101, 209288), (202, 104644), (404, 52322), (808, 26161)]