20827016

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1$

素因数の和:294

約数の個数: 64

約数和(自身を含む): 46932480

約数和(自身を除く): 26105464

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 47, 56, 82, 94, 164, 188, 193, 287, 328, 329, 376, 386, 574, 658, 772, 1148, 1316, 1351, 1544, 1927, 2296, 2632, 2702, 3854, 5404, 7708, 7913, 9071, 10808, 13489, 15416, 15826, 18142, 26978, 31652, 36284, 53956, 55391, 63304, 63497, 72568, 107912, 110782, 126994, 221564, 253988, 371911, 443128, 507976, 743822, 1487644, 2603377, 2975288, 5206754, 10413508, 20827016]

約数ペア:

[(1, 20827016), (2, 10413508), (4, 5206754), (7, 2975288), (8, 2603377), (14, 1487644), (28, 743822), (41, 507976), (47, 443128), (56, 371911), (82, 253988), (94, 221564), (164, 126994), (188, 110782), (193, 107912), (287, 72568), (328, 63497), (329, 63304), (376, 55391), (386, 53956), (574, 36284), (658, 31652), (772, 26978), (1148, 18142), (1316, 15826), (1351, 15416), (1544, 13489), (1927, 10808), (2296, 9071), (2632, 7913), (2702, 7708), (3854, 5404)]