18908831253

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^2\times {\mathrm{172603}}^1$

素因数の和:172725

約数の個数: 24

約数和(自身を含む): 27673254112

約数和(自身を除く): 8764422859

約数列:

[1, 3, 13, 39, 53, 159, 689, 2067, 2809, 8427, 36517, 109551, 172603, 517809, 2243839, 6731517, 9147959, 27443877, 118923467, 356770401, 484841827, 1454525481, 6302943751, 18908831253]

約数ペア:

[(1, 18908831253), (3, 6302943751), (13, 1454525481), (39, 484841827), (53, 356770401), (159, 118923467), (689, 27443877), (2067, 9147959), (2809, 6731517), (8427, 2243839), (36517, 517809), (109551, 172603)]