15978681

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{20407}}^1$

素因数の和:20445

約数の個数: 16

約数和(自身を含む): 24489600

約数和(自身を除く): 8510919

約数列:

[1, 3, 9, 27, 29, 87, 261, 783, 20407, 61221, 183663, 550989, 591803, 1775409, 5326227, 15978681]

約数ペア:

[(1, 15978681), (3, 5326227), (9, 1775409), (27, 591803), (29, 550989), (87, 183663), (261, 61221), (783, 20407)]