20840236

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{197}}^1\times {\mathrm{499}}^1$

素因数の和:753

約数の個数: 24

約数和(自身を含む): 37422000

約数和(自身を除く): 16581764

約数列:

[1, 2, 4, 53, 106, 197, 212, 394, 499, 788, 998, 1996, 10441, 20882, 26447, 41764, 52894, 98303, 105788, 196606, 393212, 5210059, 10420118, 20840236]

約数ペア:

[(1, 20840236), (2, 10420118), (4, 5210059), (53, 393212), (106, 196606), (197, 105788), (212, 98303), (394, 52894), (499, 41764), (788, 26447), (998, 20882), (1996, 10441)]