8640027

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{9697}}^1$

素因数の和:9720

約数の個数: 20

約数和(自身を含む): 14081496

約数和(自身を除く): 5441469

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 9697, 29091, 87273, 106667, 261819, 320001, 785457, 960003, 2880009, 8640027]

約数ペア:

[(1, 8640027), (3, 2880009), (9, 960003), (11, 785457), (27, 320001), (33, 261819), (81, 106667), (99, 87273), (297, 29091), (891, 9697)]