21016619

素因数分解:

${\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{521}}^1$

素因数の和:670

約数の個数: 16

約数和(自身を含む): 23677920

約数和(自身を除く): 2661301

約数列:

[1, 13, 29, 107, 377, 521, 1391, 3103, 6773, 15109, 40339, 55747, 196417, 724711, 1616663, 21016619]

約数ペア:

[(1, 21016619), (13, 1616663), (29, 724711), (107, 196417), (377, 55747), (521, 40339), (1391, 15109), (3103, 6773)]