28707777

素因数分解:

$3^5\times 7^2\times {\mathrm{2411}}^1$

素因数の和:2440

約数の個数: 36

約数和(自身を含む): 50044176

約数和(自身を除く): 21336399

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 441, 567, 1323, 1701, 2411, 3969, 7233, 11907, 16877, 21699, 50631, 65097, 118139, 151893, 195291, 354417, 455679, 585873, 1063251, 1367037, 3189753, 4101111, 9569259, 28707777]

約数ペア:

[(1, 28707777), (3, 9569259), (7, 4101111), (9, 3189753), (21, 1367037), (27, 1063251), (49, 585873), (63, 455679), (81, 354417), (147, 195291), (189, 151893), (243, 118139), (441, 65097), (567, 50631), (1323, 21699), (1701, 16877), (2411, 11907), (3969, 7233)]