20899910

素因数分解:

$2^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{13841}}^1$

素因数の和:13999

約数の個数: 16

約数和(自身を含む): 37871712

約数和(自身を除く): 16971802

約数列:

[1, 2, 5, 10, 151, 302, 755, 1510, 13841, 27682, 69205, 138410, 2089991, 4179982, 10449955, 20899910]

約数ペア:

[(1, 20899910), (2, 10449955), (5, 4179982), (10, 2089991), (151, 138410), (302, 69205), (755, 27682), (1510, 13841)]