21420867

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{32309}}^1$

素因数の和:32342

約数の個数: 16

約数和(自身を含む): 32568480

約数和(自身を除く): 11147613

約数列:

[1, 3, 13, 17, 39, 51, 221, 663, 32309, 96927, 420017, 549253, 1260051, 1647759, 7140289, 21420867]

約数ペア:

[(1, 21420867), (3, 7140289), (13, 1647759), (17, 1260051), (39, 549253), (51, 420017), (221, 96927), (663, 32309)]