400399769

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{157}}^1\times {\mathrm{3011}}^1$

素因数の和:3197

約数の個数: 24

約数和(自身を含む): 506353344

約数和(自身を除く): 105953575

約数列:

[1, 7, 11, 77, 121, 157, 847, 1099, 1727, 3011, 12089, 18997, 21077, 33121, 132979, 231847, 364331, 472727, 2550317, 3309089, 5199997, 36399979, 57199967, 400399769]

約数ペア:

[(1, 400399769), (7, 57199967), (11, 36399979), (77, 5199997), (121, 3309089), (157, 2550317), (847, 472727), (1099, 364331), (1727, 231847), (3011, 132979), (12089, 33121), (18997, 21077)]