20172687997

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^2\times {\mathrm{141689}}^1$

素因数の和:141793

約数の個数: 24

約数和(自身を含む): 25749040320

約数和(自身を除く): 5576352323

約数列:

[1, 7, 11, 43, 77, 301, 473, 1849, 3311, 12943, 20339, 141689, 142373, 991823, 1558579, 6092627, 10910053, 42648389, 67018897, 261982961, 469132279, 1833880727, 2881812571, 20172687997]

約数ペア:

[(1, 20172687997), (7, 2881812571), (11, 1833880727), (43, 469132279), (77, 261982961), (301, 67018897), (473, 42648389), (1849, 10910053), (3311, 6092627), (12943, 1558579), (20339, 991823), (141689, 142373)]