128219259

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{1087}}^1$

素因数の和:1275

約数の個数: 32

約数和(自身を含む): 201793536

約数和(自身を除く): 73574277

約数列:

[1, 3, 7, 21, 41, 123, 137, 287, 411, 861, 959, 1087, 2877, 3261, 5617, 7609, 16851, 22827, 39319, 44567, 117957, 133701, 148919, 311969, 446757, 935907, 1042433, 3127299, 6105679, 18317037, 42739753, 128219259]

約数ペア:

[(1, 128219259), (3, 42739753), (7, 18317037), (21, 6105679), (41, 3127299), (123, 1042433), (137, 935907), (287, 446757), (411, 311969), (861, 148919), (959, 133701), (1087, 117957), (2877, 44567), (3261, 39319), (5617, 22827), (7609, 16851)]