21121361604

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{853}}^1\times {\mathrm{4679}}^1$

素因数の和:5559

約数の個数: 144

約数和(自身を含む): 63787651200

約数和(自身を除く): 42666289596

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 84, 98, 108, 126, 147, 189, 196, 252, 294, 378, 441, 588, 756, 853, 882, 1323, 1706, 1764, 2559, 2646, 3412, 4679, 5118, 5292, 5971, 7677, 9358, 10236, 11942, 14037, 15354, 17913, 18716, 23031, 23884, 28074, 30708, 32753, 35826, 41797, 42111, 46062, 53739, 56148, 65506, 71652, 83594, 84222, 92124, 98259, 107478, 125391, 126333, 131012, 161217, 167188, 168444, 196518, 214956, 229271, 250782, 252666, 294777, 322434, 376173, 393036, 458542, 501564, 505332, 589554, 644868, 687813, 752346, 884331, 917084, 1128519, 1179108, 1375626, 1504692, 1768662, 2063439, 2257038, 2751252, 3537324, 3991187, 4126878, 4514076, 6190317, 7982374, 8253756, 11973561, 12380634, 15964748, 23947122, 24761268, 27938309, 35920683, 47894244, 55876618, 71841366, 83814927, 107762049, 111753236, 143682732, 167629854, 195568163, 215524098, 251444781, 335259708, 391136326, 431048196, 502889562, 586704489, 754334343, 782272652, 1005779124, 1173408978, 1508668686, 1760113467, 2346817956, 3017337372, 3520226934, 5280340401, 7040453868, 10560680802, 21121361604]

約数ペア:

[(1, 21121361604), (2, 10560680802), (3, 7040453868), (4, 5280340401), (6, 3520226934), (7, 3017337372), (9, 2346817956), (12, 1760113467), (14, 1508668686), (18, 1173408978), (21, 1005779124), (27, 782272652), (28, 754334343), (36, 586704489), (42, 502889562), (49, 431048196), (54, 391136326), (63, 335259708), (84, 251444781), (98, 215524098), (108, 195568163), (126, 167629854), (147, 143682732), (189, 111753236), (196, 107762049), (252, 83814927), (294, 71841366), (378, 55876618), (441, 47894244), (588, 35920683), (756, 27938309), (853, 24761268), (882, 23947122), (1323, 15964748), (1706, 12380634), (1764, 11973561), (2559, 8253756), (2646, 7982374), (3412, 6190317), (4679, 4514076), (5118, 4126878), (5292, 3991187), (5971, 3537324), (7677, 2751252), (9358, 2257038), (10236, 2063439), (11942, 1768662), (14037, 1504692), (15354, 1375626), (17913, 1179108), (18716, 1128519), (23031, 917084), (23884, 884331), (28074, 752346), (30708, 687813), (32753, 644868), (35826, 589554), (41797, 505332), (42111, 501564), (46062, 458542), (53739, 393036), (56148, 376173), (65506, 322434), (71652, 294777), (83594, 252666), (84222, 250782), (92124, 229271), (98259, 214956), (107478, 196518), (125391, 168444), (126333, 167188), (131012, 161217)]