20185884

素因数分解:

$2^2\times 3^2\times {\mathrm{560719}}^1$

素因数の和:560729

約数の個数: 18

約数和(自身を含む): 51025520

約数和(自身を除く): 30839636

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 560719, 1121438, 1682157, 2242876, 3364314, 5046471, 6728628, 10092942, 20185884]

約数ペア:

[(1, 20185884), (2, 10092942), (3, 6728628), (4, 5046471), (6, 3364314), (9, 2242876), (12, 1682157), (18, 1121438), (36, 560719)]