27989885

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{72701}}^1$

素因数の和:72724

約数の個数: 16

約数和(自身を含む): 41876352

約数和(自身を除く): 13886467

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 72701, 363505, 508907, 799711, 2544535, 3998555, 5597977, 27989885]

約数ペア:

[(1, 27989885), (5, 5597977), (7, 3998555), (11, 2544535), (35, 799711), (55, 508907), (77, 363505), (385, 72701)]