20457999

素因数分解:

$3^2\times {\mathrm{971}}^1\times {\mathrm{2341}}^1$

素因数の和:3318

約数の個数: 12

約数和(自身を含む): 29593512

約数和(自身を除く): 9135513

約数列:

[1, 3, 9, 971, 2341, 2913, 7023, 8739, 21069, 2273111, 6819333, 20457999]

約数ペア:

[(1, 20457999), (3, 6819333), (9, 2273111), (971, 21069), (2341, 8739), (2913, 7023)]