19688590

素因数分解:

$2^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{3779}}^1$

素因数の和:4307

約数の個数: 16

約数和(自身を含む): 35516880

約数和(自身を除く): 15828290

約数列:

[1, 2, 5, 10, 521, 1042, 2605, 3779, 5210, 7558, 18895, 37790, 1968859, 3937718, 9844295, 19688590]

約数ペア:

[(1, 19688590), (2, 9844295), (5, 3937718), (10, 1968859), (521, 37790), (1042, 18895), (2605, 7558), (3779, 5210)]