21266784

素因数分解:

$2^5\times 3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1$

素因数の和:178

約数の個数: 216

約数和(自身を含む): 77307048

約数和(自身を除く): 56040264

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 16, 18, 21, 22, 24, 28, 32, 33, 36, 42, 44, 48, 49, 56, 63, 66, 72, 77, 84, 88, 96, 98, 99, 112, 126, 132, 137, 144, 147, 154, 168, 176, 196, 198, 224, 231, 252, 264, 274, 288, 294, 308, 336, 352, 392, 396, 411, 441, 462, 504, 528, 539, 548, 588, 616, 672, 693, 784, 792, 822, 882, 924, 959, 1008, 1056, 1078, 1096, 1176, 1232, 1233, 1386, 1507, 1568, 1584, 1617, 1644, 1764, 1848, 1918, 2016, 2156, 2192, 2352, 2464, 2466, 2772, 2877, 3014, 3168, 3234, 3288, 3528, 3696, 3836, 4312, 4384, 4521, 4704, 4851, 4932, 5544, 5754, 6028, 6468, 6576, 6713, 7056, 7392, 7672, 8624, 8631, 9042, 9702, 9864, 10549, 11088, 11508, 12056, 12936, 13152, 13426, 13563, 14112, 15344, 17248, 17262, 18084, 19404, 19728, 20139, 21098, 22176, 23016, 24112, 25872, 26852, 27126, 30688, 31647, 34524, 36168, 38808, 39456, 40278, 42196, 46032, 48224, 51744, 53704, 54252, 60417, 63294, 69048, 72336, 73843, 77616, 80556, 84392, 92064, 94941, 107408, 108504, 120834, 126588, 138096, 144672, 147686, 155232, 161112, 168784, 189882, 214816, 217008, 221529, 241668, 253176, 276192, 295372, 322224, 337568, 379764, 434016, 443058, 483336, 506352, 590744, 644448, 664587, 759528, 886116, 966672, 1012704, 1181488, 1329174, 1519056, 1772232, 1933344, 2362976, 2658348, 3038112, 3544464, 5316696, 7088928, 10633392, 21266784]

約数ペア:

[(1, 21266784), (2, 10633392), (3, 7088928), (4, 5316696), (6, 3544464), (7, 3038112), (8, 2658348), (9, 2362976), (11, 1933344), (12, 1772232), (14, 1519056), (16, 1329174), (18, 1181488), (21, 1012704), (22, 966672), (24, 886116), (28, 759528), (32, 664587), (33, 644448), (36, 590744), (42, 506352), (44, 483336), (48, 443058), (49, 434016), (56, 379764), (63, 337568), (66, 322224), (72, 295372), (77, 276192), (84, 253176), (88, 241668), (96, 221529), (98, 217008), (99, 214816), (112, 189882), (126, 168784), (132, 161112), (137, 155232), (144, 147686), (147, 144672), (154, 138096), (168, 126588), (176, 120834), (196, 108504), (198, 107408), (224, 94941), (231, 92064), (252, 84392), (264, 80556), (274, 77616), (288, 73843), (294, 72336), (308, 69048), (336, 63294), (352, 60417), (392, 54252), (396, 53704), (411, 51744), (441, 48224), (462, 46032), (504, 42196), (528, 40278), (539, 39456), (548, 38808), (588, 36168), (616, 34524), (672, 31647), (693, 30688), (784, 27126), (792, 26852), (822, 25872), (882, 24112), (924, 23016), (959, 22176), (1008, 21098), (1056, 20139), (1078, 19728), (1096, 19404), (1176, 18084), (1232, 17262), (1233, 17248), (1386, 15344), (1507, 14112), (1568, 13563), (1584, 13426), (1617, 13152), (1644, 12936), (1764, 12056), (1848, 11508), (1918, 11088), (2016, 10549), (2156, 9864), (2192, 9702), (2352, 9042), (2464, 8631), (2466, 8624), (2772, 7672), (2877, 7392), (3014, 7056), (3168, 6713), (3234, 6576), (3288, 6468), (3528, 6028), (3696, 5754), (3836, 5544), (4312, 4932), (4384, 4851), (4521, 4704)]