20957715

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20249}}^1$

素因数の和:20283

約数の個数: 24

約数和(自身を含む): 37908000

約数和(自身を除く): 16950285

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 20249, 60747, 101245, 182241, 303735, 465727, 911205, 1397181, 2328635, 4191543, 6985905, 20957715]

約数ペア:

[(1, 20957715), (3, 6985905), (5, 4191543), (9, 2328635), (15, 1397181), (23, 911205), (45, 465727), (69, 303735), (115, 182241), (207, 101245), (345, 60747), (1035, 20249)]