21215672361

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{23957}}^1$

素因数の和:24040

約数の個数: 60

約数和(自身を含む): 35349406092

約数和(自身を除く): 14133733731

約数列:

[1, 3, 9, 13, 27, 29, 39, 81, 87, 117, 261, 351, 377, 783, 841, 1053, 1131, 2349, 2523, 3393, 7569, 10179, 10933, 22707, 23957, 30537, 32799, 68121, 71871, 98397, 215613, 295191, 311441, 646839, 694753, 885573, 934323, 1940517, 2084259, 2802969, 6252777, 8408907, 9031789, 18758331, 20147837, 25226721, 27095367, 56274993, 60443511, 81286101, 181330533, 243858303, 261921881, 543991599, 731574909, 785765643, 1631974797, 2357296929, 7071890787, 21215672361]

約数ペア:

[(1, 21215672361), (3, 7071890787), (9, 2357296929), (13, 1631974797), (27, 785765643), (29, 731574909), (39, 543991599), (81, 261921881), (87, 243858303), (117, 181330533), (261, 81286101), (351, 60443511), (377, 56274993), (783, 27095367), (841, 25226721), (1053, 20147837), (1131, 18758331), (2349, 9031789), (2523, 8408907), (3393, 6252777), (7569, 2802969), (10179, 2084259), (10933, 1940517), (22707, 934323), (23957, 885573), (30537, 694753), (32799, 646839), (68121, 311441), (71871, 295191), (98397, 215613)]