20691686

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{14153}}^1$

素因数の和:14215

約数の個数: 16

約数和(自身を含む): 33629904

約数和(自身を除く): 12938218

約数列:

[1, 2, 17, 34, 43, 86, 731, 1462, 14153, 28306, 240601, 481202, 608579, 1217158, 10345843, 20691686]

約数ペア:

[(1, 20691686), (2, 10345843), (17, 1217158), (34, 608579), (43, 481202), (86, 240601), (731, 28306), (1462, 14153)]