20081007

素因数分解:

$3^3\times {\mathrm{709}}^1\times {\mathrm{1049}}^1$

素因数の和:1767

約数の個数: 16

約数和(自身を含む): 29820000

約数和(自身を除く): 9738993

約数列:

[1, 3, 9, 27, 709, 1049, 2127, 3147, 6381, 9441, 19143, 28323, 743741, 2231223, 6693669, 20081007]

約数ペア:

[(1, 20081007), (3, 6693669), (9, 2231223), (27, 743741), (709, 28323), (1049, 19143), (2127, 9441), (3147, 6381)]