21382011

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{17863}}^1$

素因数の和:17895

約数の個数: 24

約数和(自身を含む): 37157120

約数和(自身を除く): 15775109

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 17863, 53589, 125041, 160767, 339397, 375123, 1018191, 1125369, 2375779, 3054573, 7127337, 21382011]

約数ペア:

[(1, 21382011), (3, 7127337), (7, 3054573), (9, 2375779), (19, 1125369), (21, 1018191), (57, 375123), (63, 339397), (133, 160767), (171, 125041), (399, 53589), (1197, 17863)]