28318941

素因数分解:

$3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{4201}}^1$

素因数の和:4321

約数の個数: 24

約数和(自身を含む): 47196864

約数和(自身を除く): 18877923

約数列:

[1, 3, 7, 9, 21, 63, 107, 321, 749, 963, 2247, 4201, 6741, 12603, 29407, 37809, 88221, 264663, 449507, 1348521, 3146549, 4045563, 9439647, 28318941]

約数ペア:

[(1, 28318941), (3, 9439647), (7, 4045563), (9, 3146549), (21, 1348521), (63, 449507), (107, 264663), (321, 88221), (749, 37809), (963, 29407), (2247, 12603), (4201, 6741)]