21803089

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2129}}^1$

素因数の和:2173

約数の個数: 24

約数和(自身を含む): 29138400

約数和(自身を除く): 7335311

約数列:

[1, 7, 11, 19, 49, 77, 133, 209, 539, 931, 1463, 2129, 10241, 14903, 23419, 40451, 104321, 163933, 283157, 444961, 1147531, 1982099, 3114727, 21803089]

約数ペア:

[(1, 21803089), (7, 3114727), (11, 1982099), (19, 1147531), (49, 444961), (77, 283157), (133, 163933), (209, 104321), (539, 40451), (931, 23419), (1463, 14903), (2129, 10241)]