21416724

素因数分解:

$2^2\times 3^4\times 7^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:120

約数の個数: 180

約数和(自身を含む): 69521760

約数和(自身を除く): 48105036

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 27, 28, 36, 38, 42, 49, 54, 57, 63, 71, 76, 81, 84, 98, 108, 114, 126, 133, 142, 147, 162, 171, 189, 196, 213, 228, 252, 266, 284, 294, 324, 342, 378, 399, 426, 441, 497, 513, 532, 567, 588, 639, 684, 756, 798, 852, 882, 931, 994, 1026, 1134, 1197, 1278, 1323, 1349, 1491, 1539, 1596, 1764, 1862, 1917, 1988, 2052, 2268, 2394, 2556, 2646, 2698, 2793, 2982, 3078, 3479, 3591, 3724, 3834, 3969, 4047, 4473, 4788, 5292, 5396, 5586, 5751, 5964, 6156, 6958, 7182, 7668, 7938, 8094, 8379, 8946, 9443, 10437, 10773, 11172, 11502, 12141, 13419, 13916, 14364, 15876, 16188, 16758, 17892, 18886, 20874, 21546, 23004, 24282, 25137, 26838, 28329, 31311, 33516, 36423, 37772, 40257, 41748, 43092, 48564, 50274, 53676, 56658, 62622, 66101, 72846, 75411, 80514, 84987, 93933, 100548, 109269, 113316, 125244, 132202, 145692, 150822, 161028, 169974, 187866, 198303, 218538, 254961, 264404, 281799, 301644, 339948, 375732, 396606, 437076, 509922, 563598, 594909, 764883, 793212, 1019844, 1127196, 1189818, 1529766, 1784727, 2379636, 3059532, 3569454, 5354181, 7138908, 10708362, 21416724]

約数ペア:

[(1, 21416724), (2, 10708362), (3, 7138908), (4, 5354181), (6, 3569454), (7, 3059532), (9, 2379636), (12, 1784727), (14, 1529766), (18, 1189818), (19, 1127196), (21, 1019844), (27, 793212), (28, 764883), (36, 594909), (38, 563598), (42, 509922), (49, 437076), (54, 396606), (57, 375732), (63, 339948), (71, 301644), (76, 281799), (81, 264404), (84, 254961), (98, 218538), (108, 198303), (114, 187866), (126, 169974), (133, 161028), (142, 150822), (147, 145692), (162, 132202), (171, 125244), (189, 113316), (196, 109269), (213, 100548), (228, 93933), (252, 84987), (266, 80514), (284, 75411), (294, 72846), (324, 66101), (342, 62622), (378, 56658), (399, 53676), (426, 50274), (441, 48564), (497, 43092), (513, 41748), (532, 40257), (567, 37772), (588, 36423), (639, 33516), (684, 31311), (756, 28329), (798, 26838), (852, 25137), (882, 24282), (931, 23004), (994, 21546), (1026, 20874), (1134, 18886), (1197, 17892), (1278, 16758), (1323, 16188), (1349, 15876), (1491, 14364), (1539, 13916), (1596, 13419), (1764, 12141), (1862, 11502), (1917, 11172), (1988, 10773), (2052, 10437), (2268, 9443), (2394, 8946), (2556, 8379), (2646, 8094), (2698, 7938), (2793, 7668), (2982, 7182), (3078, 6958), (3479, 6156), (3591, 5964), (3724, 5751), (3834, 5586), (3969, 5396), (4047, 5292), (4473, 4788)]