21859558

素因数分解:

$2^1\times 7^1\times {\mathrm{73}}^2\times {\mathrm{293}}^1$

素因数の和:448

約数の個数: 24

約数和(自身を含む): 38123568

約数和(自身を除く): 16264010

約数列:

[1, 2, 7, 14, 73, 146, 293, 511, 586, 1022, 2051, 4102, 5329, 10658, 21389, 37303, 42778, 74606, 149723, 299446, 1561397, 3122794, 10929779, 21859558]

約数ペア:

[(1, 21859558), (2, 10929779), (7, 3122794), (14, 1561397), (73, 299446), (146, 149723), (293, 74606), (511, 42778), (586, 37303), (1022, 21389), (2051, 10658), (4102, 5329)]