28707939

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{199}}^1$

素因数の和:361

約数の個数: 40

約数和(自身を含む): 46754400

約数和(自身を除く): 18046461

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 137, 199, 351, 411, 597, 1053, 1233, 1781, 1791, 2587, 3699, 5343, 5373, 7761, 11097, 16029, 16119, 23283, 27263, 48087, 69849, 81789, 144261, 209547, 245367, 354419, 736101, 1063257, 2208303, 3189771, 9569313, 28707939]

約数ペア:

[(1, 28707939), (3, 9569313), (9, 3189771), (13, 2208303), (27, 1063257), (39, 736101), (81, 354419), (117, 245367), (137, 209547), (199, 144261), (351, 81789), (411, 69849), (597, 48087), (1053, 27263), (1233, 23283), (1781, 16119), (1791, 16029), (2587, 11097), (3699, 7761), (5343, 5373)]