18320708

素因数分解:

$2^2\times 7^2\times {\mathrm{211}}^1\times {\mathrm{443}}^1$

素因数の和:672

約数の個数: 36

約数和(自身を含む): 37557072

約数和(自身を除く): 19236364

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 211, 422, 443, 844, 886, 1477, 1772, 2954, 3101, 5908, 6202, 10339, 12404, 20678, 21707, 41356, 43414, 86828, 93473, 186946, 373892, 654311, 1308622, 2617244, 4580177, 9160354, 18320708]

約数ペア:

[(1, 18320708), (2, 9160354), (4, 4580177), (7, 2617244), (14, 1308622), (28, 654311), (49, 373892), (98, 186946), (196, 93473), (211, 86828), (422, 43414), (443, 41356), (844, 21707), (886, 20678), (1477, 12404), (1772, 10339), (2954, 6202), (3101, 5908)]