20877556

素因数分解:

$2^2\times 7^1\times {\mathrm{373}}^1\times {\mathrm{1999}}^1$

素因数の和:2383

約数の個数: 24

約数和(自身を含む): 41888000

約数和(自身を除く): 21010444

約数列:

[1, 2, 4, 7, 14, 28, 373, 746, 1492, 1999, 2611, 3998, 5222, 7996, 10444, 13993, 27986, 55972, 745627, 1491254, 2982508, 5219389, 10438778, 20877556]

約数ペア:

[(1, 20877556), (2, 10438778), (4, 5219389), (7, 2982508), (14, 1491254), (28, 745627), (373, 55972), (746, 27986), (1492, 13993), (1999, 10444), (2611, 7996), (3998, 5222)]