28403973

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{80923}}^1$

素因数の和:80945

約数の個数: 16

約数和(自身を含む): 45317440

約数和(自身を除く): 16913467

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 80923, 242769, 728307, 1051999, 2184921, 3155997, 9467991, 28403973]

約数ペア:

[(1, 28403973), (3, 9467991), (9, 3155997), (13, 2184921), (27, 1051999), (39, 728307), (117, 242769), (351, 80923)]