18688292

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 38986752

約数和(自身を除く): 20298460

約数列:

[1, 2, 4, 7, 14, 28, 41, 73, 82, 146, 164, 223, 287, 292, 446, 511, 574, 892, 1022, 1148, 1561, 2044, 2993, 3122, 5986, 6244, 9143, 11972, 16279, 18286, 20951, 32558, 36572, 41902, 64001, 65116, 83804, 113953, 128002, 227906, 256004, 455812, 667439, 1334878, 2669756, 4672073, 9344146, 18688292]

約数ペア:

[(1, 18688292), (2, 9344146), (4, 4672073), (7, 2669756), (14, 1334878), (28, 667439), (41, 455812), (73, 256004), (82, 227906), (146, 128002), (164, 113953), (223, 83804), (287, 65116), (292, 64001), (446, 41902), (511, 36572), (574, 32558), (892, 20951), (1022, 18286), (1148, 16279), (1561, 11972), (2044, 9143), (2993, 6244), (3122, 5986)]