28789317

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{181}}^1$

素因数の和:370

約数の個数: 32

約数和(自身を含む): 44204160

約数和(自身を除く): 15414843

約数列:

[1, 3, 9, 27, 43, 129, 137, 181, 387, 411, 543, 1161, 1233, 1629, 3699, 4887, 5891, 7783, 17673, 23349, 24797, 53019, 70047, 74391, 159057, 210141, 223173, 669519, 1066271, 3198813, 9596439, 28789317]

約数ペア:

[(1, 28789317), (3, 9596439), (9, 3198813), (27, 1066271), (43, 669519), (129, 223173), (137, 210141), (181, 159057), (387, 74391), (411, 70047), (543, 53019), (1161, 24797), (1233, 23349), (1629, 17673), (3699, 7783), (4887, 5891)]