19990173

素因数分解:

$3^1\times 7^1\times {\mathrm{557}}^1\times {\mathrm{1709}}^1$

素因数の和:2276

約数の個数: 16

約数和(自身を含む): 30533760

約数和(自身を除く): 10543587

約数列:

[1, 3, 7, 21, 557, 1671, 1709, 3899, 5127, 11697, 11963, 35889, 951913, 2855739, 6663391, 19990173]

約数ペア:

[(1, 19990173), (3, 6663391), (7, 2855739), (21, 951913), (557, 35889), (1671, 11963), (1709, 11697), (3899, 5127)]