20431666

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{2099}}^1$

素因数の和:2289

約数の個数: 16

約数和(自身を含む): 31852800

約数和(自身を除く): 11421134

約数列:

[1, 2, 31, 62, 157, 314, 2099, 4198, 4867, 9734, 65069, 130138, 329543, 659086, 10215833, 20431666]

約数ペア:

[(1, 20431666), (2, 10215833), (31, 659086), (62, 329543), (157, 130138), (314, 65069), (2099, 9734), (4198, 4867)]