21522069

素因数分解:

$3^2\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{277}}^1$

素因数の和:469

約数の個数: 24

約数和(自身を含む): 31875480

約数和(自身を除く): 10353411

約数列:

[1, 3, 9, 89, 97, 267, 277, 291, 801, 831, 873, 2493, 8633, 24653, 25899, 26869, 73959, 77697, 80607, 221877, 241821, 2391341, 7174023, 21522069]

約数ペア:

[(1, 21522069), (3, 7174023), (9, 2391341), (89, 241821), (97, 221877), (267, 80607), (277, 77697), (291, 73959), (801, 26869), (831, 25899), (873, 24653), (2493, 8633)]