20724151

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2221}}^1$

素因数の和:2302

約数の個数: 16

約数和(自身を含む): 25028608

約数和(自身を除く): 4304457

約数列:

[1, 7, 31, 43, 217, 301, 1333, 2221, 9331, 15547, 68851, 95503, 481957, 668521, 2960593, 20724151]

約数ペア:

[(1, 20724151), (7, 2960593), (31, 668521), (43, 481957), (217, 95503), (301, 68851), (1333, 15547), (2221, 9331)]