247987593

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{55441}}^1$

素因数の和:55525

約数の個数: 24

約数和(自身を含む): 415149696

約数和(自身を除く): 167162103

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 55441, 166323, 388087, 498969, 1164261, 3492783, 3936311, 11808933, 27554177, 35426799, 82662531, 247987593]

約数ペア:

[(1, 247987593), (3, 82662531), (7, 35426799), (9, 27554177), (21, 11808933), (63, 3936311), (71, 3492783), (213, 1164261), (497, 498969), (639, 388087), (1491, 166323), (4473, 55441)]