2921807

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{571}}^1$

素因数の和:638

約数の個数: 16

約数和(自身を含む): 3624192

約数和(自身を除く): 702385

約数列:

[1, 7, 17, 43, 119, 301, 571, 731, 3997, 5117, 9707, 24553, 67949, 171871, 417401, 2921807]

約数ペア:

[(1, 2921807), (7, 417401), (17, 171871), (43, 67949), (119, 24553), (301, 9707), (571, 5117), (731, 3997)]