21898359

素因数分解:

$3^2\times 7^1\times {\mathrm{193}}^1\times {\mathrm{1801}}^1$

素因数の和:2007

約数の個数: 24

約数和(自身を含む): 36357152

約数和(自身を除く): 14458793

約数列:

[1, 3, 7, 9, 21, 63, 193, 579, 1351, 1737, 1801, 4053, 5403, 12159, 12607, 16209, 37821, 113463, 347593, 1042779, 2433151, 3128337, 7299453, 21898359]

約数ペア:

[(1, 21898359), (3, 7299453), (7, 3128337), (9, 2433151), (21, 1042779), (63, 347593), (193, 113463), (579, 37821), (1351, 16209), (1737, 12607), (1801, 12159), (4053, 5403)]