664807563

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{245407}}^1$

素因数の和:245463

約数の個数: 24

約数和(自身を含む): 1122987008

約数和(自身を除く): 458179445

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 245407, 736221, 1717849, 2208663, 5153547, 10552501, 15460641, 31657503, 73867507, 94972509, 221602521, 664807563]

約数ペア:

[(1, 664807563), (3, 221602521), (7, 94972509), (9, 73867507), (21, 31657503), (43, 15460641), (63, 10552501), (129, 5153547), (301, 2208663), (387, 1717849), (903, 736221), (2709, 245407)]