31139238

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{399221}}^1$

素因数の和:399239

約数の個数: 16

約数和(自身を含む): 67069296

約数和(自身を除く): 35930058

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 399221, 798442, 1197663, 2395326, 5189873, 10379746, 15569619, 31139238]

約数ペア:

[(1, 31139238), (2, 15569619), (3, 10379746), (6, 5189873), (13, 2395326), (26, 1197663), (39, 798442), (78, 399221)]