21693663

素因数分解:

$3^4\times {\mathrm{223}}^1\times {\mathrm{1201}}^1$

素因数の和:1436

約数の個数: 20

約数和(自身を含む): 32579008

約数和(自身を除く): 10885345

約数列:

[1, 3, 9, 27, 81, 223, 669, 1201, 2007, 3603, 6021, 10809, 18063, 32427, 97281, 267823, 803469, 2410407, 7231221, 21693663]

約数ペア:

[(1, 21693663), (3, 7231221), (9, 2410407), (27, 803469), (81, 267823), (223, 97281), (669, 32427), (1201, 18063), (2007, 10809), (3603, 6021)]