19976390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{285377}}^1$

素因数の和:285391

約数の個数: 16

約数和(自身を含む): 41094432

約数和(自身を除く): 21118042

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 285377, 570754, 1426885, 1997639, 2853770, 3995278, 9988195, 19976390]

約数ペア:

[(1, 19976390), (2, 9988195), (5, 3995278), (7, 2853770), (10, 1997639), (14, 1426885), (35, 570754), (70, 285377)]