20817370

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{297391}}^1$

素因数の和:297405

約数の個数: 16

約数和(自身を含む): 42824448

約数和(自身を除く): 22007078

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 297391, 594782, 1486955, 2081737, 2973910, 4163474, 10408685, 20817370]

約数ペア:

[(1, 20817370), (2, 10408685), (5, 4163474), (7, 2973910), (10, 2081737), (14, 1486955), (35, 594782), (70, 297391)]