21000659380

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{22341127}}^1$

素因数の和:22341183

約数の個数: 24

約数和(自身を含む): 45039714048

約数和(自身を除く): 24039054668

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 22341127, 44682254, 89364508, 111705635, 223411270, 446822540, 1050032969, 2100065938, 4200131876, 5250164845, 10500329690, 21000659380]

約数ペア:

[(1, 21000659380), (2, 10500329690), (4, 5250164845), (5, 4200131876), (10, 2100065938), (20, 1050032969), (47, 446822540), (94, 223411270), (188, 111705635), (235, 89364508), (470, 44682254), (940, 22341127)]