21570297945

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{476639}}^1$

素因数の和:477085

約数の個数: 32

約数和(自身を含む): 39534428160

約数和(自身を除く): 17964130215

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 431, 1293, 2155, 3017, 6465, 9051, 15085, 45255, 476639, 1429917, 2383195, 3336473, 7149585, 10009419, 16682365, 50047095, 205431409, 616294227, 1027157045, 1438019863, 3081471135, 4314059589, 7190099315, 21570297945]

約数ペア:

[(1, 21570297945), (3, 7190099315), (5, 4314059589), (7, 3081471135), (15, 1438019863), (21, 1027157045), (35, 616294227), (105, 205431409), (431, 50047095), (1293, 16682365), (2155, 10009419), (3017, 7149585), (6465, 3336473), (9051, 2383195), (15085, 1429917), (45255, 476639)]