257508181

素因数分解:

$7^2\times {\mathrm{439}}^1\times {\mathrm{11971}}^1$

素因数の和:12424

約数の個数: 12

約数和(自身を含む): 300257760

約数和(自身を除く): 42749579

約数列:

[1, 7, 49, 439, 3073, 11971, 21511, 83797, 586579, 5255269, 36786883, 257508181]

約数ペア:

[(1, 257508181), (7, 36786883), (49, 5255269), (439, 586579), (3073, 83797), (11971, 21511)]