128740059

素因数分解:

$3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{25867}}^1$

素因数の和:25959

約数の個数: 24

約数和(自身を含む): 215221760

約数和(自身を除く): 86481701

約数列:

[1, 3, 7, 9, 21, 63, 79, 237, 553, 711, 1659, 4977, 25867, 77601, 181069, 232803, 543207, 1629621, 2043493, 6130479, 14304451, 18391437, 42913353, 128740059]

約数ペア:

[(1, 128740059), (3, 42913353), (7, 18391437), (9, 14304451), (21, 6130479), (63, 2043493), (79, 1629621), (237, 543207), (553, 232803), (711, 181069), (1659, 77601), (4977, 25867)]