21808404

素因数分解:

$2^2\times 3^2\times {\mathrm{605789}}^1$

素因数の和:605799

約数の個数: 18

約数和(自身を含む): 55126890

約数和(自身を除く): 33318486

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 605789, 1211578, 1817367, 2423156, 3634734, 5452101, 7269468, 10904202, 21808404]

約数ペア:

[(1, 21808404), (2, 10904202), (3, 7269468), (4, 5452101), (6, 3634734), (9, 2423156), (12, 1817367), (18, 1211578), (36, 605789)]