128127951

素因数分解:

$3^2\times 7^1\times {\mathrm{1087}}^1\times {\mathrm{1871}}^1$

素因数の和:2971

約数の個数: 24

約数和(自身を含む): 211820544

約数和(自身を除く): 83692593

約数列:

[1, 3, 7, 9, 21, 63, 1087, 1871, 3261, 5613, 7609, 9783, 13097, 16839, 22827, 39291, 68481, 117873, 2033777, 6101331, 14236439, 18303993, 42709317, 128127951]

約数ペア:

[(1, 128127951), (3, 42709317), (7, 18303993), (9, 14236439), (21, 6101331), (63, 2033777), (1087, 117873), (1871, 68481), (3261, 39291), (5613, 22827), (7609, 16839), (9783, 13097)]