20646708

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{40013}}^1$

素因数の和:40063

約数の個数: 24

約数和(自身を含む): 49297248

約数和(自身を除く): 28650540

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 40013, 80026, 120039, 160052, 240078, 480156, 1720559, 3441118, 5161677, 6882236, 10323354, 20646708]

約数ペア:

[(1, 20646708), (2, 10323354), (3, 6882236), (4, 5161677), (6, 3441118), (12, 1720559), (43, 480156), (86, 240078), (129, 160052), (172, 120039), (258, 80026), (516, 40013)]