20940002018

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{1213}}^1\times {\mathrm{663961}}^1$

素因数の和:665189

約数の個数: 16

約数和(自身を含む): 33854094456

約数和(自身を除く): 12914092438

約数列:

[1, 2, 13, 26, 1213, 2426, 15769, 31538, 663961, 1327922, 8631493, 17262986, 805384693, 1610769386, 10470001009, 20940002018]

約数ペア:

[(1, 20940002018), (2, 10470001009), (13, 1610769386), (26, 805384693), (1213, 17262986), (2426, 8631493), (15769, 1327922), (31538, 663961)]