20579986

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{63913}}^1$

素因数の和:63945

約数の個数: 16

約数和(自身を含む): 36814464

約数和(自身を除く): 16234478

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 63913, 127826, 447391, 894782, 1469999, 2939998, 10289993, 20579986]

約数ペア:

[(1, 20579986), (2, 10289993), (7, 2939998), (14, 1469999), (23, 894782), (46, 447391), (161, 127826), (322, 63913)]