28698921

素因数分解:

$3^3\times {\mathrm{163}}^1\times {\mathrm{6521}}^1$

素因数の和:6693

約数の個数: 16

約数和(自身を含む): 42784320

約数和(自身を除く): 14085399

約数列:

[1, 3, 9, 27, 163, 489, 1467, 4401, 6521, 19563, 58689, 176067, 1062923, 3188769, 9566307, 28698921]

約数ペア:

[(1, 28698921), (3, 9566307), (9, 3188769), (27, 1062923), (163, 176067), (489, 58689), (1467, 19563), (4401, 6521)]