1643994

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1$

素因数の和:80

約数の個数: 72

約数和(自身を含む): 4279392

約数和(自身を除く): 2635398

約数列:

[1, 2, 3, 6, 9, 11, 18, 19, 22, 23, 33, 38, 46, 57, 66, 69, 99, 114, 138, 171, 198, 207, 209, 253, 342, 361, 414, 418, 437, 506, 627, 722, 759, 874, 1083, 1254, 1311, 1518, 1881, 2166, 2277, 2622, 3249, 3762, 3933, 3971, 4554, 4807, 6498, 7866, 7942, 8303, 9614, 11913, 14421, 16606, 23826, 24909, 28842, 35739, 43263, 49818, 71478, 74727, 86526, 91333, 149454, 182666, 273999, 547998, 821997, 1643994]

約数ペア:

[(1, 1643994), (2, 821997), (3, 547998), (6, 273999), (9, 182666), (11, 149454), (18, 91333), (19, 86526), (22, 74727), (23, 71478), (33, 49818), (38, 43263), (46, 35739), (57, 28842), (66, 24909), (69, 23826), (99, 16606), (114, 14421), (138, 11913), (171, 9614), (198, 8303), (207, 7942), (209, 7866), (253, 6498), (342, 4807), (361, 4554), (414, 3971), (418, 3933), (437, 3762), (506, 3249), (627, 2622), (722, 2277), (759, 2166), (874, 1881), (1083, 1518), (1254, 1311)]