21678832

素因数分解:

$2^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{4721}}^1$

素因数の和:4777

約数の個数: 40

約数和(自身を含む): 49184352

約数和(自身を除く): 27505520

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 56, 82, 112, 164, 287, 328, 574, 656, 1148, 2296, 4592, 4721, 9442, 18884, 33047, 37768, 66094, 75536, 132188, 193561, 264376, 387122, 528752, 774244, 1354927, 1548488, 2709854, 3096976, 5419708, 10839416, 21678832]

約数ペア:

[(1, 21678832), (2, 10839416), (4, 5419708), (7, 3096976), (8, 2709854), (14, 1548488), (16, 1354927), (28, 774244), (41, 528752), (56, 387122), (82, 264376), (112, 193561), (164, 132188), (287, 75536), (328, 66094), (574, 37768), (656, 33047), (1148, 18884), (2296, 9442), (4592, 4721)]