256543161

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^2\times {\mathrm{4349}}^1$

素因数の和:4465

約数の個数: 24

約数和(自身を含む): 398529600

約数和(自身を除く): 141986439

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 2809, 4349, 8427, 13047, 19663, 30443, 58989, 91329, 230497, 691491, 1613479, 4840437, 12216341, 36649023, 85514387, 256543161]

約数ペア:

[(1, 256543161), (3, 85514387), (7, 36649023), (21, 12216341), (53, 4840437), (159, 1613479), (371, 691491), (1113, 230497), (2809, 91329), (4349, 58989), (8427, 30443), (13047, 19663)]