18919315

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1\times {\mathrm{227}}^1$

素因数の和:522

約数の個数: 16

約数和(自身を含む): 23201280

約数和(自身を除く): 4281965

約数列:

[1, 5, 79, 211, 227, 395, 1055, 1135, 16669, 17933, 47897, 83345, 89665, 239485, 3783863, 18919315]

約数ペア:

[(1, 18919315), (5, 3783863), (79, 239485), (211, 89665), (227, 83345), (395, 47897), (1055, 17933), (1135, 16669)]