389337471

素因数分解:

$3^2\times {\mathrm{139}}^2\times {\mathrm{2239}}^1$

素因数の和:2523

約数の個数: 18

約数和(自身を含む): 566704320

約数和(自身を除く): 177366849

約数列:

[1, 3, 9, 139, 417, 1251, 2239, 6717, 19321, 20151, 57963, 173889, 311221, 933663, 2800989, 43259719, 129779157, 389337471]

約数ペア:

[(1, 389337471), (3, 129779157), (9, 43259719), (139, 2800989), (417, 933663), (1251, 311221), (2239, 173889), (6717, 57963), (19321, 20151)]