21131924

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{43661}}^1$

素因数の和:43687

約数の個数: 18

約数和(自身を含む): 40649322

約数和(自身を除く): 19517398

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 43661, 87322, 174644, 480271, 960542, 1921084, 5282981, 10565962, 21131924]

約数ペア:

[(1, 21131924), (2, 10565962), (4, 5282981), (11, 1921084), (22, 960542), (44, 480271), (121, 174644), (242, 87322), (484, 43661)]