21133030

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{5167}}^1$

素因数の和:5583

約数の個数: 16

約数和(自身を含む): 38139840

約数和(自身を除く): 17006810

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 5167, 10334, 25835, 51670, 2113303, 4226606, 10566515, 21133030]

約数ペア:

[(1, 21133030), (2, 10566515), (5, 4226606), (10, 2113303), (409, 51670), (818, 25835), (2045, 10334), (4090, 5167)]