18957554

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{31}}^1$

素因数の和:100

約数の個数: 72

約数和(自身を含む): 38916864

約数和(自身を除く): 19959310

約数列:

[1, 2, 7, 11, 14, 19, 22, 31, 38, 62, 77, 121, 133, 154, 209, 217, 242, 266, 341, 361, 418, 434, 589, 682, 722, 847, 1178, 1463, 1694, 2299, 2387, 2527, 2926, 3751, 3971, 4123, 4598, 4774, 5054, 6479, 7502, 7942, 8246, 11191, 12958, 16093, 22382, 26257, 27797, 32186, 43681, 45353, 52514, 55594, 71269, 78337, 87362, 90706, 123101, 142538, 156674, 246202, 305767, 498883, 611534, 861707, 997766, 1354111, 1723414, 2708222, 9478777, 18957554]

約数ペア:

[(1, 18957554), (2, 9478777), (7, 2708222), (11, 1723414), (14, 1354111), (19, 997766), (22, 861707), (31, 611534), (38, 498883), (62, 305767), (77, 246202), (121, 156674), (133, 142538), (154, 123101), (209, 90706), (217, 87362), (242, 78337), (266, 71269), (341, 55594), (361, 52514), (418, 45353), (434, 43681), (589, 32186), (682, 27797), (722, 26257), (847, 22382), (1178, 16093), (1463, 12958), (1694, 11191), (2299, 8246), (2387, 7942), (2527, 7502), (2926, 6479), (3751, 5054), (3971, 4774), (4123, 4598)]