21810334

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{409}}^1$

素因数の和:724

約数の個数: 32

約数和(自身を含む): 40501440

約数和(自身を除く): 18691106

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 293, 409, 586, 818, 2051, 2863, 3809, 4102, 5317, 5726, 7618, 10634, 26663, 37219, 53326, 74438, 119837, 239674, 838859, 1557881, 1677718, 3115762, 10905167, 21810334]

約数ペア:

[(1, 21810334), (2, 10905167), (7, 3115762), (13, 1677718), (14, 1557881), (26, 838859), (91, 239674), (182, 119837), (293, 74438), (409, 53326), (586, 37219), (818, 26663), (2051, 10634), (2863, 7618), (3809, 5726), (4102, 5317)]