20722737

素因数分解:

$3^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{2311}}^1$

素因数の和:2389

約数の個数: 24

約数和(自身を含む): 32682432

約数和(自身を除く): 11959695

約数列:

[1, 3, 7, 21, 49, 61, 147, 183, 427, 1281, 2311, 2989, 6933, 8967, 16177, 48531, 113239, 140971, 339717, 422913, 986797, 2960391, 6907579, 20722737]

約数ペア:

[(1, 20722737), (3, 6907579), (7, 2960391), (21, 986797), (49, 422913), (61, 339717), (147, 140971), (183, 113239), (427, 48531), (1281, 16177), (2311, 8967), (2989, 6933)]