128914317

素因数分解:

$3^2\times 7^1\times {\mathrm{347}}^1\times {\mathrm{5897}}^1$

素因数の和:6257

約数の個数: 24

約数和(自身を含む): 213460416

約数和(自身を除く): 84546099

約数列:

[1, 3, 7, 9, 21, 63, 347, 1041, 2429, 3123, 5897, 7287, 17691, 21861, 41279, 53073, 123837, 371511, 2046259, 6138777, 14323813, 18416331, 42971439, 128914317]

約数ペア:

[(1, 128914317), (3, 42971439), (7, 18416331), (9, 14323813), (21, 6138777), (63, 2046259), (347, 371511), (1041, 123837), (2429, 53073), (3123, 41279), (5897, 21861), (7287, 17691)]