19201385

素因数分解:

$5^1\times 7^2\times {\mathrm{181}}^1\times {\mathrm{433}}^1$

素因数の和:633

約数の個数: 24

約数和(自身を含む): 27013896

約数和(自身を除く): 7812511

約数列:

[1, 5, 7, 35, 49, 181, 245, 433, 905, 1267, 2165, 3031, 6335, 8869, 15155, 21217, 44345, 78373, 106085, 391865, 548611, 2743055, 3840277, 19201385]

約数ペア:

[(1, 19201385), (5, 3840277), (7, 2743055), (35, 548611), (49, 391865), (181, 106085), (245, 78373), (433, 44345), (905, 21217), (1267, 15155), (2165, 8869), (3031, 6335)]