20811568

素因数分解:

$2^4\times {\mathrm{349}}^1\times {\mathrm{3727}}^1$

素因数の和:4084

約数の個数: 20

約数和(自身を含む): 40448800

約数和(自身を除く): 19637232

約数列:

[1, 2, 4, 8, 16, 349, 698, 1396, 2792, 3727, 5584, 7454, 14908, 29816, 59632, 1300723, 2601446, 5202892, 10405784, 20811568]

約数ペア:

[(1, 20811568), (2, 10405784), (4, 5202892), (8, 2601446), (16, 1300723), (349, 59632), (698, 29816), (1396, 14908), (2792, 7454), (3727, 5584)]