21081039

素因数分解:

$3^1\times 7^1\times {\mathrm{617}}^1\times {\mathrm{1627}}^1$

素因数の和:2254

約数の個数: 16

約数和(自身を含む): 32195328

約数和(自身を除く): 11114289

約数列:

[1, 3, 7, 21, 617, 1627, 1851, 4319, 4881, 11389, 12957, 34167, 1003859, 3011577, 7027013, 21081039]

約数ペア:

[(1, 21081039), (3, 7027013), (7, 3011577), (21, 1003859), (617, 34167), (1627, 12957), (1851, 11389), (4319, 4881)]