19561985

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{373}}^1\times {\mathrm{617}}^1$

素因数の和:1012

約数の個数: 16

約数和(自身を含む): 24962256

約数和(自身を除く): 5400271

約数列:

[1, 5, 17, 85, 373, 617, 1865, 3085, 6341, 10489, 31705, 52445, 230141, 1150705, 3912397, 19561985]

約数ペア:

[(1, 19561985), (5, 3912397), (17, 1150705), (85, 230141), (373, 52445), (617, 31705), (1865, 10489), (3085, 6341)]