19906390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{284377}}^1$

素因数の和:284391

約数の個数: 16

約数和(自身を含む): 40950432

約数和(自身を除く): 21044042

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 284377, 568754, 1421885, 1990639, 2843770, 3981278, 9953195, 19906390]

約数ペア:

[(1, 19906390), (2, 9953195), (5, 3981278), (7, 2843770), (10, 1990639), (14, 1421885), (35, 568754), (70, 284377)]