20166489

素因数分解:

$3^4\times 7^2\times {\mathrm{5081}}^1$

素因数の和:5107

約数の個数: 30

約数和(自身を含む): 35050554

約数和(自身を除く): 14884065

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 5081, 15243, 35567, 45729, 106701, 137187, 248969, 320103, 411561, 746907, 960309, 2240721, 2880927, 6722163, 20166489]

約数ペア:

[(1, 20166489), (3, 6722163), (7, 2880927), (9, 2240721), (21, 960309), (27, 746907), (49, 411561), (63, 320103), (81, 248969), (147, 137187), (189, 106701), (441, 45729), (567, 35567), (1323, 15243), (3969, 5081)]