19639508

素因数分解:

$2^2\times 7^1\times {\mathrm{353}}^1\times {\mathrm{1987}}^1$

素因数の和:2351

約数の個数: 24

約数和(自身を含む): 39410112

約数和(自身を除く): 19770604

約数列:

[1, 2, 4, 7, 14, 28, 353, 706, 1412, 1987, 2471, 3974, 4942, 7948, 9884, 13909, 27818, 55636, 701411, 1402822, 2805644, 4909877, 9819754, 19639508]

約数ペア:

[(1, 19639508), (2, 9819754), (4, 4909877), (7, 2805644), (14, 1402822), (28, 701411), (353, 55636), (706, 27818), (1412, 13909), (1987, 9884), (2471, 7948), (3974, 4942)]