21210339

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{14341}}^1$

素因数の和:14390

約数の個数: 16

約数和(自身を含む): 30978720

約数和(自身を除く): 9768381

約数列:

[1, 3, 17, 29, 51, 87, 493, 1479, 14341, 43023, 243797, 415889, 731391, 1247667, 7070113, 21210339]

約数ペア:

[(1, 21210339), (3, 7070113), (17, 1247667), (29, 731391), (51, 415889), (87, 243797), (493, 43023), (1479, 14341)]