19850690

素因数分解:

$2^1\times 5^1\times {\mathrm{911}}^1\times {\mathrm{2179}}^1$

素因数の和:3097

約数の個数: 16

約数和(自身を含む): 35786880

約数和(自身を除く): 15936190

約数列:

[1, 2, 5, 10, 911, 1822, 2179, 4358, 4555, 9110, 10895, 21790, 1985069, 3970138, 9925345, 19850690]

約数ペア:

[(1, 19850690), (2, 9925345), (5, 3970138), (10, 1985069), (911, 21790), (1822, 10895), (2179, 9110), (4358, 4555)]