20683910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{12239}}^1$

素因数の和:12272

約数の個数: 24

約数和(自身を含む): 40318560

約数和(自身を除く): 19634650

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 12239, 24478, 61195, 122390, 159107, 318214, 795535, 1591070, 2068391, 4136782, 10341955, 20683910]

約数ペア:

[(1, 20683910), (2, 10341955), (5, 4136782), (10, 2068391), (13, 1591070), (26, 795535), (65, 318214), (130, 159107), (169, 122390), (338, 61195), (845, 24478), (1690, 12239)]