20651416

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{43753}}^1$

素因数の和:43818

約数の個数: 16

約数和(自身を含む): 39378600

約数和(自身を除く): 18727184

約数列:

[1, 2, 4, 8, 59, 118, 236, 472, 43753, 87506, 175012, 350024, 2581427, 5162854, 10325708, 20651416]

約数ペア:

[(1, 20651416), (2, 10325708), (4, 5162854), (8, 2581427), (59, 350024), (118, 175012), (236, 87506), (472, 43753)]