21743187

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^2\times {\mathrm{193}}^1$

素因数の和:307

約数の個数: 24

約数和(自身を含む): 31525776

約数和(自身を除く): 9782589

約数列:

[1, 3, 17, 47, 51, 141, 193, 579, 799, 2209, 2397, 3281, 6627, 9071, 9843, 27213, 37553, 112659, 154207, 426337, 462621, 1279011, 7247729, 21743187]

約数ペア:

[(1, 21743187), (3, 7247729), (17, 1279011), (47, 462621), (51, 426337), (141, 154207), (193, 112659), (579, 37553), (799, 27213), (2209, 9843), (2397, 9071), (3281, 6627)]