21871107

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{21893}}^1$

素因数の和:21939

約数の個数: 16

約数和(自身を含む): 33278880

約数和(自身を除く): 11407773

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 21893, 65679, 197037, 591111, 810041, 2430123, 7290369, 21871107]

約数ペア:

[(1, 21871107), (3, 7290369), (9, 2430123), (27, 810041), (37, 591111), (111, 197037), (333, 65679), (999, 21893)]