2578311

素因数分解:

$3^4\times {\mathrm{139}}^1\times {\mathrm{229}}^1$

素因数の和:380

約数の個数: 20

約数和(自身を含む): 3896200

約数和(自身を除く): 1317889

約数列:

[1, 3, 9, 27, 81, 139, 229, 417, 687, 1251, 2061, 3753, 6183, 11259, 18549, 31831, 95493, 286479, 859437, 2578311]

約数ペア:

[(1, 2578311), (3, 859437), (9, 286479), (27, 95493), (81, 31831), (139, 18549), (229, 11259), (417, 6183), (687, 3753), (1251, 2061)]