257440981

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{6737}}^1$

素因数の和:6900

約数の個数: 16

約数和(自身を含む): 302724864

約数和(自身を除く): 45283883

約数列:

[1, 7, 53, 103, 371, 721, 5459, 6737, 38213, 47159, 357061, 693911, 2499427, 4857377, 36777283, 257440981]

約数ペア:

[(1, 257440981), (7, 36777283), (53, 4857377), (103, 2499427), (371, 693911), (721, 357061), (5459, 47159), (6737, 38213)]