18992687

素因数分解:

$7^1\times {\mathrm{23}}^3\times {\mathrm{223}}^1$

素因数の和:299

約数の個数: 16

約数和(自身を含む): 22794240

約数和(自身を除く): 3801553

約数列:

[1, 7, 23, 161, 223, 529, 1561, 3703, 5129, 12167, 35903, 85169, 117967, 825769, 2713241, 18992687]

約数ペア:

[(1, 18992687), (7, 2713241), (23, 825769), (161, 117967), (223, 85169), (529, 35903), (1561, 12167), (3703, 5129)]