8721009

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{643}}^1$

素因数の和:797

約数の個数: 24

約数和(自身を含む): 13864032

約数和(自身を除く): 5143023

約数列:

[1, 3, 9, 11, 33, 99, 137, 411, 643, 1233, 1507, 1929, 4521, 5787, 7073, 13563, 21219, 63657, 88091, 264273, 792819, 969001, 2907003, 8721009]

約数ペア:

[(1, 8721009), (3, 2907003), (9, 969001), (11, 792819), (33, 264273), (99, 88091), (137, 63657), (411, 21219), (643, 13563), (1233, 7073), (1507, 5787), (1929, 4521)]