257921916

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{3070499}}^1$

素因数の和:3070513

約数の個数: 24

約数和(自身を含む): 687792000

約数和(自身を除く): 429870084

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 3070499, 6140998, 9211497, 12281996, 18422994, 21493493, 36845988, 42986986, 64480479, 85973972, 128960958, 257921916]

約数ペア:

[(1, 257921916), (2, 128960958), (3, 85973972), (4, 64480479), (6, 42986986), (7, 36845988), (12, 21493493), (14, 18422994), (21, 12281996), (28, 9211497), (42, 6140998), (84, 3070499)]