20011005

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{63527}}^1$

素因数の和:63545

約数の個数: 24

約数和(自身を含む): 39641472

約数和(自身を除く): 19630467

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 63527, 190581, 317635, 444689, 571743, 952905, 1334067, 2223445, 2858715, 4002201, 6670335, 20011005]

約数ペア:

[(1, 20011005), (3, 6670335), (5, 4002201), (7, 2858715), (9, 2223445), (15, 1334067), (21, 952905), (35, 571743), (45, 444689), (63, 317635), (105, 190581), (315, 63527)]