28766907

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1607}}^1$

素因数の和:1649

約数の個数: 40

約数和(自身を含む): 49031136

約数和(自身を除く): 20264229

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 81, 117, 153, 221, 351, 459, 663, 1053, 1377, 1607, 1989, 4821, 5967, 14463, 17901, 20891, 27319, 43389, 62673, 81957, 130167, 188019, 245871, 355147, 564057, 737613, 1065441, 1692171, 2212839, 3196323, 9588969, 28766907]

約数ペア:

[(1, 28766907), (3, 9588969), (9, 3196323), (13, 2212839), (17, 1692171), (27, 1065441), (39, 737613), (51, 564057), (81, 355147), (117, 245871), (153, 188019), (221, 130167), (351, 81957), (459, 62673), (663, 43389), (1053, 27319), (1377, 20891), (1607, 17901), (1989, 14463), (4821, 5967)]