638867089

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1\times {\mathrm{13523}}^1$

素因数の和:13944

約数の個数: 16

約数和(自身を含む): 775087488

約数和(自身を除く): 136220399

約数列:

[1, 7, 17, 119, 397, 2779, 6749, 13523, 47243, 94661, 229891, 1609237, 5368631, 37580417, 91266727, 638867089]

約数ペア:

[(1, 638867089), (7, 91266727), (17, 37580417), (119, 5368631), (397, 1609237), (2779, 229891), (6749, 94661), (13523, 47243)]