20018894

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{233}}^1$

素因数の和:297

約数の個数: 48

約数和(自身を含む): 38514528

約数和(自身を除く): 18495634

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 119, 133, 233, 238, 266, 323, 361, 466, 646, 722, 1631, 2261, 2527, 3262, 3961, 4427, 4522, 5054, 6137, 7922, 8854, 12274, 27727, 30989, 42959, 55454, 61978, 75259, 84113, 85918, 150518, 168226, 526813, 588791, 1053626, 1177582, 1429921, 2859842, 10009447, 20018894]

約数ペア:

[(1, 20018894), (2, 10009447), (7, 2859842), (14, 1429921), (17, 1177582), (19, 1053626), (34, 588791), (38, 526813), (119, 168226), (133, 150518), (233, 85918), (238, 84113), (266, 75259), (323, 61978), (361, 55454), (466, 42959), (646, 30989), (722, 27727), (1631, 12274), (2261, 8854), (2527, 7922), (3262, 6137), (3961, 5054), (4427, 4522)]