28409084

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{645661}}^1$

素因数の和:645676

約数の個数: 12

約数和(自身を含む): 54235608

約数和(自身を除く): 25826524

約数列:

[1, 2, 4, 11, 22, 44, 645661, 1291322, 2582644, 7102271, 14204542, 28409084]

約数ペア:

[(1, 28409084), (2, 14204542), (4, 7102271), (11, 2582644), (22, 1291322), (44, 645661)]