290788421

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{12143}}^1$

素因数の和:12472

約数の個数: 16

約数和(自身を含む): 363737088

約数和(自身を除く): 72948667

約数列:

[1, 7, 11, 77, 311, 2177, 3421, 12143, 23947, 85001, 133573, 935011, 3776473, 26435311, 41541203, 290788421]

約数ペア:

[(1, 290788421), (7, 41541203), (11, 26435311), (77, 3776473), (311, 935011), (2177, 133573), (3421, 85001), (12143, 23947)]