17965881

素因数分解:

$3^4\times {\mathrm{293}}^1\times {\mathrm{757}}^1$

素因数の和:1062

約数の個数: 20

約数和(自身を含む): 26965092

約数和(自身を除く): 8999211

約数列:

[1, 3, 9, 27, 81, 293, 757, 879, 2271, 2637, 6813, 7911, 20439, 23733, 61317, 221801, 665403, 1996209, 5988627, 17965881]

約数ペア:

[(1, 17965881), (3, 5988627), (9, 1996209), (27, 665403), (81, 221801), (293, 61317), (757, 23733), (879, 20439), (2271, 7911), (2637, 6813)]