28811781

素因数分解:

$3^5\times {\mathrm{139}}^1\times {\mathrm{853}}^1$

素因数の和:1007

約数の個数: 24

約数和(自身を含む): 43519840

約数和(自身を除く): 14708059

約数列:

[1, 3, 9, 27, 81, 139, 243, 417, 853, 1251, 2559, 3753, 7677, 11259, 23031, 33777, 69093, 118567, 207279, 355701, 1067103, 3201309, 9603927, 28811781]

約数ペア:

[(1, 28811781), (3, 9603927), (9, 3201309), (27, 1067103), (81, 355701), (139, 207279), (243, 118567), (417, 69093), (853, 33777), (1251, 23031), (2559, 11259), (3753, 7677)]