19663468

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{40627}}^1$

素因数の和:40653

約数の個数: 18

約数和(自身を含む): 37824668

約数和(自身を除く): 18161200

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 40627, 81254, 162508, 446897, 893794, 1787588, 4915867, 9831734, 19663468]

約数ペア:

[(1, 19663468), (2, 9831734), (4, 4915867), (11, 1787588), (22, 893794), (44, 446897), (121, 162508), (242, 81254), (484, 40627)]