7917831

素因数分解:

$3^4\times {\mathrm{239}}^1\times {\mathrm{409}}^1$

素因数の和:660

約数の個数: 20

約数和(自身を含む): 11906400

約数和(自身を除く): 3988569

約数列:

[1, 3, 9, 27, 81, 239, 409, 717, 1227, 2151, 3681, 6453, 11043, 19359, 33129, 97751, 293253, 879759, 2639277, 7917831]

約数ペア:

[(1, 7917831), (3, 2639277), (9, 879759), (27, 293253), (81, 97751), (239, 33129), (409, 19359), (717, 11043), (1227, 6453), (2151, 3681)]