21274848

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:257

約数の個数: 144

約数和(自身を含む): 70682976

約数和(自身を除く): 49408128

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 61, 63, 72, 84, 96, 112, 122, 126, 144, 168, 173, 183, 224, 244, 252, 288, 336, 346, 366, 427, 488, 504, 519, 549, 672, 692, 732, 854, 976, 1008, 1038, 1098, 1211, 1281, 1384, 1464, 1557, 1708, 1952, 2016, 2076, 2196, 2422, 2562, 2768, 2928, 3114, 3416, 3633, 3843, 4152, 4392, 4844, 5124, 5536, 5856, 6228, 6832, 7266, 7686, 8304, 8784, 9688, 10248, 10553, 10899, 12456, 13664, 14532, 15372, 16608, 17568, 19376, 20496, 21106, 21798, 24912, 29064, 30744, 31659, 38752, 40992, 42212, 43596, 49824, 58128, 61488, 63318, 73871, 84424, 87192, 94977, 116256, 122976, 126636, 147742, 168848, 174384, 189954, 221613, 253272, 295484, 337696, 348768, 379908, 443226, 506544, 590968, 664839, 759816, 886452, 1013088, 1181936, 1329678, 1519632, 1772904, 2363872, 2659356, 3039264, 3545808, 5318712, 7091616, 10637424, 21274848]

約数ペア:

[(1, 21274848), (2, 10637424), (3, 7091616), (4, 5318712), (6, 3545808), (7, 3039264), (8, 2659356), (9, 2363872), (12, 1772904), (14, 1519632), (16, 1329678), (18, 1181936), (21, 1013088), (24, 886452), (28, 759816), (32, 664839), (36, 590968), (42, 506544), (48, 443226), (56, 379908), (61, 348768), (63, 337696), (72, 295484), (84, 253272), (96, 221613), (112, 189954), (122, 174384), (126, 168848), (144, 147742), (168, 126636), (173, 122976), (183, 116256), (224, 94977), (244, 87192), (252, 84424), (288, 73871), (336, 63318), (346, 61488), (366, 58128), (427, 49824), (488, 43596), (504, 42212), (519, 40992), (549, 38752), (672, 31659), (692, 30744), (732, 29064), (854, 24912), (976, 21798), (1008, 21106), (1038, 20496), (1098, 19376), (1211, 17568), (1281, 16608), (1384, 15372), (1464, 14532), (1557, 13664), (1708, 12456), (1952, 10899), (2016, 10553), (2076, 10248), (2196, 9688), (2422, 8784), (2562, 8304), (2768, 7686), (2928, 7266), (3114, 6832), (3416, 6228), (3633, 5856), (3843, 5536), (4152, 5124), (4392, 4844)]