21909413

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2339}}^1$

素因数の和:2404

約数の個数: 16

約数和(自身を含む): 25272000

約数和(自身を除く): 3362587

約数列:

[1, 17, 19, 29, 323, 493, 551, 2339, 9367, 39763, 44441, 67831, 755497, 1153127, 1288789, 21909413]

約数ペア:

[(1, 21909413), (17, 1288789), (19, 1153127), (29, 755497), (323, 67831), (493, 44441), (551, 39763), (2339, 9367)]