21073017

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^2\times {\mathrm{733}}^1$

素因数の和:817

約数の個数: 24

約数和(自身を含む): 33047616

約数和(自身を除く): 11974599

約数列:

[1, 3, 7, 21, 37, 111, 259, 733, 777, 1369, 2199, 4107, 5131, 9583, 15393, 27121, 28749, 81363, 189847, 569541, 1003477, 3010431, 7024339, 21073017]

約数ペア:

[(1, 21073017), (3, 7024339), (7, 3010431), (21, 1003477), (37, 569541), (111, 189847), (259, 81363), (733, 28749), (777, 27121), (1369, 15393), (2199, 9583), (4107, 5131)]