21002445

素因数分解:

$3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4621}}^1$

素因数の和:4733

約数の個数: 24

約数和(自身を含む): 36772632

約数和(自身を除く): 15770187

約数列:

[1, 3, 5, 9, 15, 45, 101, 303, 505, 909, 1515, 4545, 4621, 13863, 23105, 41589, 69315, 207945, 466721, 1400163, 2333605, 4200489, 7000815, 21002445]

約数ペア:

[(1, 21002445), (3, 7000815), (5, 4200489), (9, 2333605), (15, 1400163), (45, 466721), (101, 207945), (303, 69315), (505, 41589), (909, 23105), (1515, 13863), (4545, 4621)]