19717089

素因数分解:

$3^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{3019}}^1$

素因数の和:3340

約数の個数: 16

約数和(自身を含む): 30151680

約数和(自身を除く): 10434591

約数列:

[1, 3, 7, 21, 311, 933, 2177, 3019, 6531, 9057, 21133, 63399, 938909, 2816727, 6572363, 19717089]

約数ペア:

[(1, 19717089), (3, 6572363), (7, 2816727), (21, 938909), (311, 63399), (933, 21133), (2177, 9057), (3019, 6531)]