28701009

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{102871}}^1$

素因数の和:102908

約数の個数: 12

約数和(自身を含む): 42794752

約数和(自身を除く): 14093743

約数列:

[1, 3, 9, 31, 93, 279, 102871, 308613, 925839, 3189001, 9567003, 28701009]

約数ペア:

[(1, 28701009), (3, 9567003), (9, 3189001), (31, 925839), (93, 308613), (279, 102871)]