20811530

素因数分解:

$2^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{6779}}^1$

素因数の和:7093

約数の個数: 16

約数和(自身を含む): 37588320

約数和(自身を除く): 16776790

約数列:

[1, 2, 5, 10, 307, 614, 1535, 3070, 6779, 13558, 33895, 67790, 2081153, 4162306, 10405765, 20811530]

約数ペア:

[(1, 20811530), (2, 10405765), (5, 4162306), (10, 2081153), (307, 67790), (614, 33895), (1535, 13558), (3070, 6779)]