19903870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{284341}}^1$

素因数の和:284355

約数の個数: 16

約数和(自身を含む): 40945248

約数和(自身を除く): 21041378

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 284341, 568682, 1421705, 1990387, 2843410, 3980774, 9951935, 19903870]

約数ペア:

[(1, 19903870), (2, 9951935), (5, 3980774), (7, 2843410), (10, 1990387), (14, 1421705), (35, 568682), (70, 284341)]