7641621

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:128

約数の個数: 48

約数和(自身を含む): 12841920

約数和(自身を除く): 5200299

約数列:

[1, 3, 9, 13, 27, 39, 41, 59, 81, 117, 123, 177, 243, 351, 369, 531, 533, 767, 1053, 1107, 1593, 1599, 2301, 2419, 3159, 3321, 4779, 4797, 6903, 7257, 9963, 14337, 14391, 20709, 21771, 31447, 43173, 62127, 65313, 94341, 129519, 186381, 195939, 283023, 587817, 849069, 2547207, 7641621]

約数ペア:

[(1, 7641621), (3, 2547207), (9, 849069), (13, 587817), (27, 283023), (39, 195939), (41, 186381), (59, 129519), (81, 94341), (117, 65313), (123, 62127), (177, 43173), (243, 31447), (351, 21771), (369, 20709), (531, 14391), (533, 14337), (767, 9963), (1053, 7257), (1107, 6903), (1593, 4797), (1599, 4779), (2301, 3321), (2419, 3159)]