19964628

素因数分解:

$2^2\times 3^2\times {\mathrm{554573}}^1$

素因数の和:554583

約数の個数: 18

約数和(自身を含む): 50466234

約数和(自身を除く): 30501606

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 554573, 1109146, 1663719, 2218292, 3327438, 4991157, 6654876, 9982314, 19964628]

約数ペア:

[(1, 19964628), (2, 9982314), (3, 6654876), (4, 4991157), (6, 3327438), (9, 2218292), (12, 1663719), (18, 1109146), (36, 554573)]