238927239

素因数分解:

$3^4\times {\mathrm{139}}^1\times {\mathrm{21221}}^1$

素因数の和:21372

約数の個数: 20

約数和(自身を含む): 359500680

約数和(自身を除く): 120573441

約数列:

[1, 3, 9, 27, 81, 139, 417, 1251, 3753, 11259, 21221, 63663, 190989, 572967, 1718901, 2949719, 8849157, 26547471, 79642413, 238927239]

約数ペア:

[(1, 238927239), (3, 79642413), (9, 26547471), (27, 8849157), (81, 2949719), (139, 1718901), (417, 572967), (1251, 190989), (3753, 63663), (11259, 21221)]