398435517

素因数分解:

$3^4\times {\mathrm{673}}^1\times {\mathrm{7309}}^1$

素因数の和:7994

約数の個数: 20

約数和(自身を含む): 596159740

約数和(自身を除く): 197724223

約数列:

[1, 3, 9, 27, 81, 673, 2019, 6057, 7309, 18171, 21927, 54513, 65781, 197343, 592029, 4918957, 14756871, 44270613, 132811839, 398435517]

約数ペア:

[(1, 398435517), (3, 132811839), (9, 44270613), (27, 14756871), (81, 4918957), (673, 592029), (2019, 197343), (6057, 65781), (7309, 54513), (18171, 21927)]