208047945

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{1981409}}^1$

素因数の和:1981424

約数の個数: 16

約数和(自身を含む): 380430720

約数和(自身を除く): 172382775

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 1981409, 5944227, 9907045, 13869863, 29721135, 41609589, 69349315, 208047945]

約数ペア:

[(1, 208047945), (3, 69349315), (5, 41609589), (7, 29721135), (15, 13869863), (21, 9907045), (35, 5944227), (105, 1981409)]