40439979

素因数分解:

$3^4\times {\mathrm{97}}^1\times {\mathrm{5147}}^1$

素因数の和:5256

約数の個数: 20

約数和(自身を含む): 61044984

約数和(自身を除く): 20605005

約数列:

[1, 3, 9, 27, 81, 97, 291, 873, 2619, 5147, 7857, 15441, 46323, 138969, 416907, 499259, 1497777, 4493331, 13479993, 40439979]

約数ペア:

[(1, 40439979), (3, 13479993), (9, 4493331), (27, 1497777), (81, 499259), (97, 416907), (291, 138969), (873, 46323), (2619, 15441), (5147, 7857)]