19278985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4937}}^1$

素因数の和:5024

約数の個数: 16

約数和(自身を含む): 25598592

約数和(自身を除く): 6319607

約数列:

[1, 5, 11, 55, 71, 355, 781, 3905, 4937, 24685, 54307, 271535, 350527, 1752635, 3855797, 19278985]

約数ペア:

[(1, 19278985), (5, 3855797), (11, 1752635), (55, 350527), (71, 271535), (355, 54307), (781, 24685), (3905, 4937)]