21210791785

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{3359}}^1\times {\mathrm{30803}}^1$

素因数の和:34208

約数の個数: 16

約数和(自身を含む): 26082362880

約数和(自身を除く): 4871571095

約数列:

[1, 5, 41, 205, 3359, 16795, 30803, 137719, 154015, 688595, 1262923, 6314615, 103467277, 517336385, 4242158357, 21210791785]

約数ペア:

[(1, 21210791785), (5, 4242158357), (41, 517336385), (205, 103467277), (3359, 6314615), (16795, 1262923), (30803, 688595), (137719, 154015)]