388614933

素因数分解:

$3^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{21493}}^1$

素因数の和:21554

約数の個数: 36

約数和(自身を含む): 668936268

約数和(自身を除く): 280321335

約数列:

[1, 3, 7, 9, 21, 41, 49, 63, 123, 147, 287, 369, 441, 861, 2009, 2583, 6027, 18081, 21493, 64479, 150451, 193437, 451353, 881213, 1053157, 1354059, 2643639, 3159471, 6168491, 7930917, 9478413, 18505473, 43179437, 55516419, 129538311, 388614933]

約数ペア:

[(1, 388614933), (3, 129538311), (7, 55516419), (9, 43179437), (21, 18505473), (41, 9478413), (49, 7930917), (63, 6168491), (123, 3159471), (147, 2643639), (287, 1354059), (369, 1053157), (441, 881213), (861, 451353), (2009, 193437), (2583, 150451), (6027, 64479), (18081, 21493)]