2800251

素因数分解:

$3^4\times {\mathrm{181}}^1\times {\mathrm{191}}^1$

素因数の和:384

約数の個数: 20

約数和(自身を含む): 4228224

約数和(自身を除く): 1427973

約数列:

[1, 3, 9, 27, 81, 181, 191, 543, 573, 1629, 1719, 4887, 5157, 14661, 15471, 34571, 103713, 311139, 933417, 2800251]

約数ペア:

[(1, 2800251), (3, 933417), (9, 311139), (27, 103713), (81, 34571), (181, 15471), (191, 14661), (543, 5157), (573, 4887), (1629, 1719)]