21891564

素因数分解:

$2^2\times 3^2\times {\mathrm{608099}}^1$

素因数の和:608109

約数の個数: 18

約数和(自身を含む): 55337100

約数和(自身を除く): 33445536

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 608099, 1216198, 1824297, 2432396, 3648594, 5472891, 7297188, 10945782, 21891564]

約数ペア:

[(1, 21891564), (2, 10945782), (3, 7297188), (4, 5472891), (6, 3648594), (9, 2432396), (12, 1824297), (18, 1216198), (36, 608099)]