21351183

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{27479}}^1$

素因数の和:27526

約数の個数: 16

約数和(自身を含む): 33415680

約数和(自身を除く): 12064497

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 27479, 82437, 192353, 577059, 1016723, 3050169, 7117061, 21351183]

約数ペア:

[(1, 21351183), (3, 7117061), (7, 3050169), (21, 1016723), (37, 577059), (111, 192353), (259, 82437), (777, 27479)]