247213967

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{35281}}^1$

素因数の和:35319

約数の個数: 24

約数和(自身を含む): 337860432

約数和(自身を除く): 90646465

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 539, 637, 1001, 7007, 35281, 246967, 388091, 458653, 1728769, 2716637, 3210571, 5045183, 19016459, 22473997, 35316281, 247213967]

約数ペア:

[(1, 247213967), (7, 35316281), (11, 22473997), (13, 19016459), (49, 5045183), (77, 3210571), (91, 2716637), (143, 1728769), (539, 458653), (637, 388091), (1001, 246967), (7007, 35281)]