20217564

素因数分解:

$2^2\times 3^2\times {\mathrm{561599}}^1$

素因数の和:561609

約数の個数: 18

約数和(自身を含む): 51105600

約数和(自身を除く): 30888036

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 561599, 1123198, 1684797, 2246396, 3369594, 5054391, 6739188, 10108782, 20217564]

約数ペア:

[(1, 20217564), (2, 10108782), (3, 6739188), (4, 5054391), (6, 3369594), (9, 2246396), (12, 1684797), (18, 1123198), (36, 561599)]