28871559

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{241}}^1$

素因数の和:302

約数の個数: 48

約数和(自身を含む): 47567520

約数和(自身を除く): 18695961

約数列:

[1, 3, 9, 17, 27, 29, 51, 81, 87, 153, 241, 243, 261, 459, 493, 723, 783, 1377, 1479, 2169, 2349, 4097, 4131, 4437, 6507, 6989, 7047, 12291, 13311, 19521, 20967, 36873, 39933, 58563, 62901, 110619, 118813, 119799, 188703, 331857, 356439, 566109, 995571, 1069317, 1698327, 3207951, 9623853, 28871559]

約数ペア:

[(1, 28871559), (3, 9623853), (9, 3207951), (17, 1698327), (27, 1069317), (29, 995571), (51, 566109), (81, 356439), (87, 331857), (153, 188703), (241, 119799), (243, 118813), (261, 110619), (459, 62901), (493, 58563), (723, 39933), (783, 36873), (1377, 20967), (1479, 19521), (2169, 13311), (2349, 12291), (4097, 7047), (4131, 6989), (4437, 6507)]