21806478

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{71263}}^1$

素因数の和:71288

約数の個数: 24

約数和(自身を含む): 50027328

約数和(自身を除く): 28220850

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306, 71263, 142526, 213789, 427578, 641367, 1211471, 1282734, 2422942, 3634413, 7268826, 10903239, 21806478]

約数ペア:

[(1, 21806478), (2, 10903239), (3, 7268826), (6, 3634413), (9, 2422942), (17, 1282734), (18, 1211471), (34, 641367), (51, 427578), (102, 213789), (153, 142526), (306, 71263)]