19989695

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{5119}}^1$

素因数の和:5206

約数の個数: 16

約数和(自身を含む): 26542080

約数和(自身を除く): 6552385

約数列:

[1, 5, 11, 55, 71, 355, 781, 3905, 5119, 25595, 56309, 281545, 363449, 1817245, 3997939, 19989695]

約数ペア:

[(1, 19989695), (5, 3997939), (11, 1817245), (55, 363449), (71, 281545), (355, 56309), (781, 25595), (3905, 5119)]