21165759

素因数分解:

$3^3\times {\mathrm{79}}^1\times {\mathrm{9923}}^1$

素因数の和:10011

約数の個数: 16

約数和(自身を含む): 31756800

約数和(自身を除く): 10591041

約数列:

[1, 3, 9, 27, 79, 237, 711, 2133, 9923, 29769, 89307, 267921, 783917, 2351751, 7055253, 21165759]

約数ペア:

[(1, 21165759), (3, 7055253), (9, 2351751), (27, 783917), (79, 267921), (237, 89307), (711, 29769), (2133, 9923)]