868887

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{631}}^1$

素因数の和:660

約数の個数: 20

約数和(自身を含む): 1376496

約数和(自身を除く): 507609

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 631, 1377, 1893, 5679, 10727, 17037, 32181, 51111, 96543, 289629, 868887]

約数ペア:

[(1, 868887), (3, 289629), (9, 96543), (17, 51111), (27, 32181), (51, 17037), (81, 10727), (153, 5679), (459, 1893), (631, 1377)]