257931

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{233}}^1$

素因数の和:283

約数の個数: 16

約数和(自身を含む): 393120

約数和(自身を除く): 135189

約数列:

[1, 3, 9, 27, 41, 123, 233, 369, 699, 1107, 2097, 6291, 9553, 28659, 85977, 257931]

約数ペア:

[(1, 257931), (3, 85977), (9, 28659), (27, 9553), (41, 6291), (123, 2097), (233, 1107), (369, 699)]