20675556

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{479}}^1$

素因数の和:609

約数の個数: 72

約数和(自身を含む): 57657600

約数和(自身を除く): 36982044

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 109, 132, 198, 218, 327, 396, 436, 479, 654, 958, 981, 1199, 1308, 1437, 1916, 1962, 2398, 2874, 3597, 3924, 4311, 4796, 5269, 5748, 7194, 8622, 10538, 10791, 14388, 15807, 17244, 21076, 21582, 31614, 43164, 47421, 52211, 63228, 94842, 104422, 156633, 189684, 208844, 313266, 469899, 574321, 626532, 939798, 1148642, 1722963, 1879596, 2297284, 3445926, 5168889, 6891852, 10337778, 20675556]

約数ペア:

[(1, 20675556), (2, 10337778), (3, 6891852), (4, 5168889), (6, 3445926), (9, 2297284), (11, 1879596), (12, 1722963), (18, 1148642), (22, 939798), (33, 626532), (36, 574321), (44, 469899), (66, 313266), (99, 208844), (109, 189684), (132, 156633), (198, 104422), (218, 94842), (327, 63228), (396, 52211), (436, 47421), (479, 43164), (654, 31614), (958, 21582), (981, 21076), (1199, 17244), (1308, 15807), (1437, 14388), (1916, 10791), (1962, 10538), (2398, 8622), (2874, 7194), (3597, 5748), (3924, 5269), (4311, 4796)]