21979776

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:91

約数の個数: 256

約数和(自身を含む): 78140160

約数和(自身を除く): 56160384

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 17, 21, 24, 26, 28, 32, 34, 37, 39, 42, 48, 51, 52, 56, 64, 68, 74, 78, 84, 91, 96, 102, 104, 111, 112, 119, 128, 136, 148, 156, 168, 182, 192, 204, 208, 221, 222, 224, 238, 259, 272, 273, 296, 312, 336, 357, 364, 384, 408, 416, 442, 444, 448, 476, 481, 518, 544, 546, 592, 624, 629, 663, 672, 714, 728, 777, 816, 832, 884, 888, 896, 952, 962, 1036, 1088, 1092, 1184, 1248, 1258, 1326, 1344, 1428, 1443, 1456, 1547, 1554, 1632, 1664, 1768, 1776, 1887, 1904, 1924, 2072, 2176, 2184, 2368, 2496, 2516, 2652, 2688, 2856, 2886, 2912, 3094, 3108, 3264, 3367, 3536, 3552, 3774, 3808, 3848, 4144, 4368, 4403, 4641, 4736, 4992, 5032, 5304, 5712, 5772, 5824, 6188, 6216, 6528, 6734, 7072, 7104, 7548, 7616, 7696, 8177, 8288, 8736, 8806, 9282, 10064, 10101, 10608, 11424, 11544, 11648, 12376, 12432, 13209, 13468, 14144, 14208, 15096, 15232, 15392, 16354, 16576, 17472, 17612, 18564, 20128, 20202, 21216, 22848, 23088, 24531, 24752, 24864, 26418, 26936, 28288, 30192, 30784, 32708, 33152, 34944, 35224, 37128, 40256, 40404, 42432, 45696, 46176, 49062, 49504, 49728, 52836, 53872, 57239, 60384, 61568, 65416, 70448, 74256, 80512, 80808, 84864, 92352, 98124, 99008, 99456, 105672, 107744, 114478, 120768, 130832, 140896, 148512, 161616, 171717, 184704, 196248, 198016, 211344, 215488, 228956, 241536, 261664, 281792, 297024, 323232, 343434, 392496, 422688, 430976, 457912, 523328, 563584, 594048, 646464, 686868, 784992, 845376, 915824, 1046656, 1292928, 1373736, 1569984, 1690752, 1831648, 2747472, 3139968, 3663296, 5494944, 7326592, 10989888, 21979776]

約数ペア:

[(1, 21979776), (2, 10989888), (3, 7326592), (4, 5494944), (6, 3663296), (7, 3139968), (8, 2747472), (12, 1831648), (13, 1690752), (14, 1569984), (16, 1373736), (17, 1292928), (21, 1046656), (24, 915824), (26, 845376), (28, 784992), (32, 686868), (34, 646464), (37, 594048), (39, 563584), (42, 523328), (48, 457912), (51, 430976), (52, 422688), (56, 392496), (64, 343434), (68, 323232), (74, 297024), (78, 281792), (84, 261664), (91, 241536), (96, 228956), (102, 215488), (104, 211344), (111, 198016), (112, 196248), (119, 184704), (128, 171717), (136, 161616), (148, 148512), (156, 140896), (168, 130832), (182, 120768), (192, 114478), (204, 107744), (208, 105672), (221, 99456), (222, 99008), (224, 98124), (238, 92352), (259, 84864), (272, 80808), (273, 80512), (296, 74256), (312, 70448), (336, 65416), (357, 61568), (364, 60384), (384, 57239), (408, 53872), (416, 52836), (442, 49728), (444, 49504), (448, 49062), (476, 46176), (481, 45696), (518, 42432), (544, 40404), (546, 40256), (592, 37128), (624, 35224), (629, 34944), (663, 33152), (672, 32708), (714, 30784), (728, 30192), (777, 28288), (816, 26936), (832, 26418), (884, 24864), (888, 24752), (896, 24531), (952, 23088), (962, 22848), (1036, 21216), (1088, 20202), (1092, 20128), (1184, 18564), (1248, 17612), (1258, 17472), (1326, 16576), (1344, 16354), (1428, 15392), (1443, 15232), (1456, 15096), (1547, 14208), (1554, 14144), (1632, 13468), (1664, 13209), (1768, 12432), (1776, 12376), (1887, 11648), (1904, 11544), (1924, 11424), (2072, 10608), (2176, 10101), (2184, 10064), (2368, 9282), (2496, 8806), (2516, 8736), (2652, 8288), (2688, 8177), (2856, 7696), (2886, 7616), (2912, 7548), (3094, 7104), (3108, 7072), (3264, 6734), (3367, 6528), (3536, 6216), (3552, 6188), (3774, 5824), (3808, 5772), (3848, 5712), (4144, 5304), (4368, 5032), (4403, 4992), (4641, 4736)]