20811170

素因数分解:

$2^1\times 5^1\times {\mathrm{1039}}^1\times {\mathrm{2003}}^1$

素因数の和:3049

約数の個数: 16

約数和(自身を含む): 37514880

約数和(自身を除く): 16703710

約数列:

[1, 2, 5, 10, 1039, 2003, 2078, 4006, 5195, 10015, 10390, 20030, 2081117, 4162234, 10405585, 20811170]

約数ペア:

[(1, 20811170), (2, 10405585), (5, 4162234), (10, 2081117), (1039, 20030), (2003, 10390), (2078, 10015), (4006, 5195)]