20781730

素因数分解:

$2^1\times 5^1\times {\mathrm{929}}^1\times {\mathrm{2237}}^1$

素因数の和:3173

約数の個数: 16

約数和(自身を含む): 37464120

約数和(自身を除く): 16682390

約数列:

[1, 2, 5, 10, 929, 1858, 2237, 4474, 4645, 9290, 11185, 22370, 2078173, 4156346, 10390865, 20781730]

約数ペア:

[(1, 20781730), (2, 10390865), (5, 4156346), (10, 2078173), (929, 22370), (1858, 11185), (2237, 9290), (4474, 4645)]