21897099

素因数分解:

$3^2\times 7^1\times {\mathrm{503}}^1\times {\mathrm{691}}^1$

素因数の和:1207

約数の個数: 24

約数和(自身を含む): 36271872

約数和(自身を除く): 14374773

約数列:

[1, 3, 7, 9, 21, 63, 503, 691, 1509, 2073, 3521, 4527, 4837, 6219, 10563, 14511, 31689, 43533, 347573, 1042719, 2433011, 3128157, 7299033, 21897099]

約数ペア:

[(1, 21897099), (3, 7299033), (7, 3128157), (9, 2433011), (21, 1042719), (63, 347573), (503, 43533), (691, 31689), (1509, 14511), (2073, 10563), (3521, 6219), (4527, 4837)]