28138347

素因数分解:

$3^4\times {\mathrm{311}}^1\times {\mathrm{1117}}^1$

素因数の和:1440

約数の個数: 20

約数和(自身を含む): 42206736

約数和(自身を除く): 14068389

約数列:

[1, 3, 9, 27, 81, 311, 933, 1117, 2799, 3351, 8397, 10053, 25191, 30159, 90477, 347387, 1042161, 3126483, 9379449, 28138347]

約数ペア:

[(1, 28138347), (3, 9379449), (9, 3126483), (27, 1042161), (81, 347387), (311, 90477), (933, 30159), (1117, 25191), (2799, 10053), (3351, 8397)]