18793999

素因数分解:

$7^3\times {\mathrm{157}}^1\times {\mathrm{349}}^1$

素因数の和:527

約数の個数: 16

約数和(自身を含む): 22120000

約数和(自身を除く): 3326001

約数列:

[1, 7, 49, 157, 343, 349, 1099, 2443, 7693, 17101, 53851, 54793, 119707, 383551, 2684857, 18793999]

約数ペア:

[(1, 18793999), (7, 2684857), (49, 383551), (157, 119707), (343, 54793), (349, 53851), (1099, 17101), (2443, 7693)]