18116516

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{411739}}^1$

素因数の和:411754

約数の個数: 12

約数和(自身を含む): 34586160

約数和(自身を除く): 16469644

約数列:

[1, 2, 4, 11, 22, 44, 411739, 823478, 1646956, 4529129, 9058258, 18116516]

約数ペア:

[(1, 18116516), (2, 9058258), (4, 4529129), (11, 1646956), (22, 823478), (44, 411739)]