21005488512

素因数分解:

$2^7\times 3^3\times {\mathrm{421}}^1\times {\mathrm{14437}}^1$

素因数の和:14881

約数の個数: 128

約数和(自身を含む): 62146927200

約数和(自身を除く): 41141438688

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 96, 108, 128, 144, 192, 216, 288, 384, 421, 432, 576, 842, 864, 1152, 1263, 1684, 1728, 2526, 3368, 3456, 3789, 5052, 6736, 7578, 10104, 11367, 13472, 14437, 15156, 20208, 22734, 26944, 28874, 30312, 40416, 43311, 45468, 53888, 57748, 60624, 80832, 86622, 90936, 115496, 121248, 129933, 161664, 173244, 181872, 230992, 242496, 259866, 346488, 363744, 389799, 461984, 484992, 519732, 692976, 727488, 779598, 923968, 1039464, 1385952, 1454976, 1559196, 1847936, 2078928, 2771904, 3118392, 4157856, 5543808, 6077977, 6236784, 8315712, 12155954, 12473568, 16631424, 18233931, 24311908, 24947136, 36467862, 48623816, 49894272, 54701793, 72935724, 97247632, 109403586, 145871448, 164105379, 194495264, 218807172, 291742896, 328210758, 388990528, 437614344, 583485792, 656421516, 777981056, 875228688, 1166971584, 1312843032, 1750457376, 2333943168, 2625686064, 3500914752, 5251372128, 7001829504, 10502744256, 21005488512]

約数ペア:

[(1, 21005488512), (2, 10502744256), (3, 7001829504), (4, 5251372128), (6, 3500914752), (8, 2625686064), (9, 2333943168), (12, 1750457376), (16, 1312843032), (18, 1166971584), (24, 875228688), (27, 777981056), (32, 656421516), (36, 583485792), (48, 437614344), (54, 388990528), (64, 328210758), (72, 291742896), (96, 218807172), (108, 194495264), (128, 164105379), (144, 145871448), (192, 109403586), (216, 97247632), (288, 72935724), (384, 54701793), (421, 49894272), (432, 48623816), (576, 36467862), (842, 24947136), (864, 24311908), (1152, 18233931), (1263, 16631424), (1684, 12473568), (1728, 12155954), (2526, 8315712), (3368, 6236784), (3456, 6077977), (3789, 5543808), (5052, 4157856), (6736, 3118392), (7578, 2771904), (10104, 2078928), (11367, 1847936), (13472, 1559196), (14437, 1454976), (15156, 1385952), (20208, 1039464), (22734, 923968), (26944, 779598), (28874, 727488), (30312, 692976), (40416, 519732), (43311, 484992), (45468, 461984), (53888, 389799), (57748, 363744), (60624, 346488), (80832, 259866), (86622, 242496), (90936, 230992), (115496, 181872), (121248, 173244), (129933, 161664)]