19889590

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{40591}}^1$

素因数の和:40612

約数の個数: 24

約数和(自身を含む): 41647392

約数和(自身を除く): 21757802

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 40591, 81182, 202955, 284137, 405910, 568274, 1420685, 1988959, 2841370, 3977918, 9944795, 19889590]

約数ペア:

[(1, 19889590), (2, 9944795), (5, 3977918), (7, 2841370), (10, 1988959), (14, 1420685), (35, 568274), (49, 405910), (70, 284137), (98, 202955), (245, 81182), (490, 40591)]