18891226

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1\times {\mathrm{449}}^1$

素因数の和:753

約数の個数: 16

約数和(自身を含む): 28809000

約数和(自身を除く): 9917774

約数列:

[1, 2, 109, 193, 218, 386, 449, 898, 21037, 42074, 48941, 86657, 97882, 173314, 9445613, 18891226]

約数ペア:

[(1, 18891226), (2, 9445613), (109, 173314), (193, 97882), (218, 86657), (386, 48941), (449, 42074), (898, 21037)]