21965619

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{1811}}^1$

素因数の和:2138

約数の個数: 16

約数和(自身を含む): 31659264

約数和(自身を除く): 9693645

約数列:

[1, 3, 13, 39, 311, 933, 1811, 4043, 5433, 12129, 23543, 70629, 563221, 1689663, 7321873, 21965619]

約数ペア:

[(1, 21965619), (3, 7321873), (13, 1689663), (39, 563221), (311, 70629), (933, 23543), (1811, 12129), (4043, 5433)]