19807805

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{467}}^1\times {\mathrm{499}}^1$

素因数の和:988

約数の個数: 16

約数和(自身を含む): 25272000

約数和(自身を除く): 5464195

約数列:

[1, 5, 17, 85, 467, 499, 2335, 2495, 7939, 8483, 39695, 42415, 233033, 1165165, 3961561, 19807805]

約数ペア:

[(1, 19807805), (5, 3961561), (17, 1165165), (85, 233033), (467, 42415), (499, 39695), (2335, 8483), (2495, 7939)]