8421965

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{521}}^1$

素因数の和:640

約数の個数: 16

約数和(自身を含む): 10485936

約数和(自身を除く): 2063971

約数列:

[1, 5, 53, 61, 265, 305, 521, 2605, 3233, 16165, 27613, 31781, 138065, 158905, 1684393, 8421965]

約数ペア:

[(1, 8421965), (5, 1684393), (53, 158905), (61, 138065), (265, 31781), (305, 27613), (521, 16165), (2605, 3233)]