21239888

素因数分解:

$2^4\times {\mathrm{857}}^1\times {\mathrm{1549}}^1$

素因数の和:2414

約数の個数: 20

約数和(自身を含む): 41226900

約数和(自身を除く): 19987012

約数列:

[1, 2, 4, 8, 16, 857, 1549, 1714, 3098, 3428, 6196, 6856, 12392, 13712, 24784, 1327493, 2654986, 5309972, 10619944, 21239888]

約数ペア:

[(1, 21239888), (2, 10619944), (4, 5309972), (8, 2654986), (16, 1327493), (857, 24784), (1549, 13712), (1714, 12392), (3098, 6856), (3428, 6196)]