20064961

素因数分解:

$7^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:253

約数の個数: 24

約数和(自身を含む): 24377760

約数和(自身を除く): 4312799

約数列:

[1, 7, 43, 49, 89, 107, 301, 623, 749, 2107, 3827, 4361, 4601, 5243, 9523, 26789, 32207, 66661, 187523, 225449, 409489, 466627, 2866423, 20064961]

約数ペア:

[(1, 20064961), (7, 2866423), (43, 466627), (49, 409489), (89, 225449), (107, 187523), (301, 66661), (623, 32207), (749, 26789), (2107, 9523), (3827, 5243), (4361, 4601)]