25803421

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{443}}^1$

素因数の和:660

約数の個数: 16

約数和(自身を含む): 30305664

約数和(自身を除く): 4502243

約数列:

[1, 7, 53, 157, 371, 443, 1099, 3101, 8321, 23479, 58247, 69551, 164353, 486857, 3686203, 25803421]

約数ペア:

[(1, 25803421), (7, 3686203), (53, 486857), (157, 164353), (371, 69551), (443, 58247), (1099, 23479), (3101, 8321)]