18389812

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{193}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 38328192

約数和(自身を除く): 19938380

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 83, 164, 166, 193, 287, 332, 386, 574, 581, 772, 1148, 1162, 1351, 2324, 2702, 3403, 5404, 6806, 7913, 13612, 15826, 16019, 23821, 31652, 32038, 47642, 55391, 64076, 95284, 110782, 112133, 221564, 224266, 448532, 656779, 1313558, 2627116, 4597453, 9194906, 18389812]

約数ペア:

[(1, 18389812), (2, 9194906), (4, 4597453), (7, 2627116), (14, 1313558), (28, 656779), (41, 448532), (82, 224266), (83, 221564), (164, 112133), (166, 110782), (193, 95284), (287, 64076), (332, 55391), (386, 47642), (574, 32038), (581, 31652), (772, 23821), (1148, 16019), (1162, 15826), (1351, 13612), (2324, 7913), (2702, 6806), (3403, 5404)]