21440789

素因数分解:

${\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^2$

素因数の和:296

約数の個数: 12

約数和(自身を含む): 22625856

約数和(自身を除く): 1185067

約数列:

[1, 43, 47, 103, 2021, 4429, 4841, 10609, 208163, 456187, 498623, 21440789]

約数ペア:

[(1, 21440789), (43, 498623), (47, 456187), (103, 208163), (2021, 10609), (4429, 4841)]