28652319

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:141

約数の個数: 64

約数和(自身を含む): 48153600

約数和(自身を除く): 19501281

約数列:

[1, 3, 9, 23, 27, 29, 37, 43, 69, 87, 111, 129, 207, 261, 333, 387, 621, 667, 783, 851, 989, 999, 1073, 1161, 1247, 1591, 2001, 2553, 2967, 3219, 3741, 4773, 6003, 7659, 8901, 9657, 11223, 14319, 18009, 22977, 24679, 26703, 28681, 28971, 33669, 36593, 42957, 46139, 74037, 86043, 109779, 138417, 222111, 258129, 329337, 415251, 666333, 774387, 988011, 1061197, 1245753, 3183591, 9550773, 28652319]

約数ペア:

[(1, 28652319), (3, 9550773), (9, 3183591), (23, 1245753), (27, 1061197), (29, 988011), (37, 774387), (43, 666333), (69, 415251), (87, 329337), (111, 258129), (129, 222111), (207, 138417), (261, 109779), (333, 86043), (387, 74037), (621, 46139), (667, 42957), (783, 36593), (851, 33669), (989, 28971), (999, 28681), (1073, 26703), (1161, 24679), (1247, 22977), (1591, 18009), (2001, 14319), (2553, 11223), (2967, 9657), (3219, 8901), (3741, 7659), (4773, 6003)]