20218756311

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{80489}}^1$

素因数の和:80640

約数の個数: 48

約数和(自身を含む): 33400130400

約数和(自身を除く): 13181374089

約数列:

[1, 3, 9, 13, 19, 39, 57, 113, 117, 171, 247, 339, 741, 1017, 1469, 2147, 2223, 4407, 6441, 13221, 19323, 27911, 80489, 83733, 241467, 251199, 724401, 1046357, 1529291, 3139071, 4587873, 9095257, 9417213, 13763619, 19880783, 27285771, 59642349, 81857313, 118238341, 172809883, 178927047, 354715023, 518429649, 1064145069, 1555288947, 2246528479, 6739585437, 20218756311]

約数ペア:

[(1, 20218756311), (3, 6739585437), (9, 2246528479), (13, 1555288947), (19, 1064145069), (39, 518429649), (57, 354715023), (113, 178927047), (117, 172809883), (171, 118238341), (247, 81857313), (339, 59642349), (741, 27285771), (1017, 19880783), (1469, 13763619), (2147, 9417213), (2223, 9095257), (4407, 4587873), (6441, 3139071), (13221, 1529291), (19323, 1046357), (27911, 724401), (80489, 251199), (83733, 241467)]