19201915

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{877}}^1$

素因数の和:1062

約数の個数: 16

約数和(自身を含む): 24022080

約数和(自身を除く): 4820165

約数列:

[1, 5, 29, 145, 151, 755, 877, 4379, 4385, 21895, 25433, 127165, 132427, 662135, 3840383, 19201915]

約数ペア:

[(1, 19201915), (5, 3840383), (29, 662135), (145, 132427), (151, 127165), (755, 25433), (877, 21895), (4379, 4385)]