20684340387

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{39671}}^1$

素因数の和:39881

約数の個数: 40

約数和(自身を含む): 31854870432

約数和(自身を除く): 11170530045

約数列:

[1, 3, 9, 27, 41, 81, 123, 157, 369, 471, 1107, 1413, 3321, 4239, 6437, 12717, 19311, 39671, 57933, 119013, 173799, 357039, 521397, 1071117, 1626511, 3213351, 4879533, 6228347, 14638599, 18685041, 43915797, 56055123, 131747391, 168165369, 255362227, 504496107, 766086681, 2298260043, 6894780129, 20684340387]

約数ペア:

[(1, 20684340387), (3, 6894780129), (9, 2298260043), (27, 766086681), (41, 504496107), (81, 255362227), (123, 168165369), (157, 131747391), (369, 56055123), (471, 43915797), (1107, 18685041), (1413, 14638599), (3321, 6228347), (4239, 4879533), (6437, 3213351), (12717, 1626511), (19311, 1071117), (39671, 521397), (57933, 357039), (119013, 173799)]