21000940221

素因数分解:

$3^1\times {\mathrm{479}}^1\times {\mathrm{1861}}^1\times {\mathrm{7853}}^1$

素因数の和:10196

約数の個数: 16

約数和(自身を含む): 28078364160

約数和(自身を除く): 7077423939

約数列:

[1, 3, 479, 1437, 1861, 5583, 7853, 23559, 891419, 2674257, 3761587, 11284761, 14614433, 43843299, 7000313407, 21000940221]

約数ペア:

[(1, 21000940221), (3, 7000313407), (479, 43843299), (1437, 14614433), (1861, 11284761), (5583, 3761587), (7853, 2674257), (23559, 891419)]