28273509

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{4139}}^1$

素因数の和:4182

約数の個数: 32

約数和(自身を含む): 47692800

約数和(自身を除く): 19419291

約数列:

[1, 3, 9, 11, 23, 27, 33, 69, 99, 207, 253, 297, 621, 759, 2277, 4139, 6831, 12417, 37251, 45529, 95197, 111753, 136587, 285591, 409761, 856773, 1047167, 1229283, 2570319, 3141501, 9424503, 28273509]

約数ペア:

[(1, 28273509), (3, 9424503), (9, 3141501), (11, 2570319), (23, 1229283), (27, 1047167), (33, 856773), (69, 409761), (99, 285591), (207, 136587), (253, 111753), (297, 95197), (621, 45529), (759, 37251), (2277, 12417), (4139, 6831)]