21360549

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{24809}}^1$

素因数の和:24860

約数の個数: 16

約数和(自身を含む): 33344640

約数和(自身を除く): 11984091

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 24809, 74427, 173663, 520989, 1017169, 3051507, 7120183, 21360549]

約数ペア:

[(1, 21360549), (3, 7120183), (7, 3051507), (21, 1017169), (41, 520989), (123, 173663), (287, 74427), (861, 24809)]