21481837

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2999}}^1$

素因数の和:3060

約数の個数: 16

約数和(自身を含む): 25200000

約数和(自身を除く): 3718163

約数列:

[1, 13, 19, 29, 247, 377, 551, 2999, 7163, 38987, 56981, 86971, 740753, 1130623, 1652449, 21481837]

約数ペア:

[(1, 21481837), (13, 1652449), (19, 1130623), (29, 740753), (247, 86971), (377, 56981), (551, 38987), (2999, 7163)]