19189912

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:400

約数の個数: 64

約数和(自身を含む): 43960320

約数和(自身を除く): 24770408

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 47, 56, 92, 94, 161, 184, 188, 317, 322, 329, 376, 634, 644, 658, 1081, 1268, 1288, 1316, 2162, 2219, 2536, 2632, 4324, 4438, 7291, 7567, 8648, 8876, 14582, 14899, 15134, 17752, 29164, 29798, 30268, 51037, 58328, 59596, 60536, 102074, 104293, 119192, 204148, 208586, 342677, 408296, 417172, 685354, 834344, 1370708, 2398739, 2741416, 4797478, 9594956, 19189912]

約数ペア:

[(1, 19189912), (2, 9594956), (4, 4797478), (7, 2741416), (8, 2398739), (14, 1370708), (23, 834344), (28, 685354), (46, 417172), (47, 408296), (56, 342677), (92, 208586), (94, 204148), (161, 119192), (184, 104293), (188, 102074), (317, 60536), (322, 59596), (329, 58328), (376, 51037), (634, 30268), (644, 29798), (658, 29164), (1081, 17752), (1268, 15134), (1288, 14899), (1316, 14582), (2162, 8876), (2219, 8648), (2536, 7567), (2632, 7291), (4324, 4438)]