21173712

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:141

約数の個数: 160

約数和(自身を含む): 67495680

約数和(自身を除く): 46321968

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 29, 41, 42, 48, 53, 56, 58, 82, 84, 87, 106, 112, 116, 123, 159, 164, 168, 174, 203, 212, 232, 246, 287, 318, 328, 336, 348, 371, 406, 424, 464, 492, 574, 609, 636, 656, 696, 742, 812, 848, 861, 984, 1113, 1148, 1189, 1218, 1272, 1392, 1484, 1537, 1624, 1722, 1968, 2173, 2226, 2296, 2378, 2436, 2544, 2968, 3074, 3248, 3444, 3567, 4346, 4452, 4592, 4611, 4756, 4872, 5936, 6148, 6519, 6888, 7134, 8323, 8692, 8904, 9222, 9512, 9744, 10759, 12296, 13038, 13776, 14268, 15211, 16646, 17384, 17808, 18444, 19024, 21518, 24592, 24969, 26076, 28536, 30422, 32277, 33292, 34768, 36888, 43036, 45633, 49938, 52152, 57072, 60844, 63017, 64554, 66584, 73776, 86072, 91266, 99876, 104304, 121688, 126034, 129108, 133168, 172144, 182532, 189051, 199752, 243376, 252068, 258216, 365064, 378102, 399504, 441119, 504136, 516432, 730128, 756204, 882238, 1008272, 1323357, 1512408, 1764476, 2646714, 3024816, 3528952, 5293428, 7057904, 10586856, 21173712]

約数ペア:

[(1, 21173712), (2, 10586856), (3, 7057904), (4, 5293428), (6, 3528952), (7, 3024816), (8, 2646714), (12, 1764476), (14, 1512408), (16, 1323357), (21, 1008272), (24, 882238), (28, 756204), (29, 730128), (41, 516432), (42, 504136), (48, 441119), (53, 399504), (56, 378102), (58, 365064), (82, 258216), (84, 252068), (87, 243376), (106, 199752), (112, 189051), (116, 182532), (123, 172144), (159, 133168), (164, 129108), (168, 126034), (174, 121688), (203, 104304), (212, 99876), (232, 91266), (246, 86072), (287, 73776), (318, 66584), (328, 64554), (336, 63017), (348, 60844), (371, 57072), (406, 52152), (424, 49938), (464, 45633), (492, 43036), (574, 36888), (609, 34768), (636, 33292), (656, 32277), (696, 30422), (742, 28536), (812, 26076), (848, 24969), (861, 24592), (984, 21518), (1113, 19024), (1148, 18444), (1189, 17808), (1218, 17384), (1272, 16646), (1392, 15211), (1484, 14268), (1537, 13776), (1624, 13038), (1722, 12296), (1968, 10759), (2173, 9744), (2226, 9512), (2296, 9222), (2378, 8904), (2436, 8692), (2544, 8323), (2968, 7134), (3074, 6888), (3248, 6519), (3444, 6148), (3567, 5936), (4346, 4872), (4452, 4756), (4592, 4611)]