20285508

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{39313}}^1$

素因数の和:39363

約数の個数: 24

約数和(自身を含む): 48434848

約数和(自身を除く): 28149340

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 39313, 78626, 117939, 157252, 235878, 471756, 1690459, 3380918, 5071377, 6761836, 10142754, 20285508]

約数ペア:

[(1, 20285508), (2, 10142754), (3, 6761836), (4, 5071377), (6, 3380918), (12, 1690459), (43, 471756), (86, 235878), (129, 157252), (172, 117939), (258, 78626), (516, 39313)]