51489351

素因数分解:

$3^4\times {\mathrm{263}}^1\times {\mathrm{2417}}^1$

素因数の和:2692

約数の個数: 20

約数和(自身を含む): 77240592

約数和(自身を除く): 25751241

約数列:

[1, 3, 9, 27, 81, 263, 789, 2367, 2417, 7101, 7251, 21303, 21753, 65259, 195777, 635671, 1907013, 5721039, 17163117, 51489351]

約数ペア:

[(1, 51489351), (3, 17163117), (9, 5721039), (27, 1907013), (81, 635671), (263, 195777), (789, 65259), (2367, 21753), (2417, 21303), (7101, 7251)]