21553728

素因数分解:

$2^6\times 3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:137

約数の個数: 168

約数和(自身を含む): 69494400

約数和(自身を除く): 47940672

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 29, 32, 42, 48, 49, 56, 58, 64, 79, 84, 87, 96, 98, 112, 116, 147, 158, 168, 174, 192, 196, 203, 224, 232, 237, 294, 316, 336, 348, 392, 406, 448, 464, 474, 553, 588, 609, 632, 672, 696, 784, 812, 928, 948, 1106, 1176, 1218, 1264, 1344, 1392, 1421, 1568, 1624, 1659, 1856, 1896, 2212, 2291, 2352, 2436, 2528, 2784, 2842, 3136, 3248, 3318, 3792, 3871, 4263, 4424, 4582, 4704, 4872, 5056, 5568, 5684, 6496, 6636, 6873, 7584, 7742, 8526, 8848, 9164, 9408, 9744, 11368, 11613, 12992, 13272, 13746, 15168, 15484, 16037, 17052, 17696, 18328, 19488, 22736, 23226, 26544, 27492, 30968, 32074, 34104, 35392, 36656, 38976, 45472, 46452, 48111, 53088, 54984, 61936, 64148, 68208, 73312, 90944, 92904, 96222, 106176, 109968, 112259, 123872, 128296, 136416, 146624, 185808, 192444, 219936, 224518, 247744, 256592, 272832, 336777, 371616, 384888, 439872, 449036, 513184, 673554, 743232, 769776, 898072, 1026368, 1347108, 1539552, 1796144, 2694216, 3079104, 3592288, 5388432, 7184576, 10776864, 21553728]

約数ペア:

[(1, 21553728), (2, 10776864), (3, 7184576), (4, 5388432), (6, 3592288), (7, 3079104), (8, 2694216), (12, 1796144), (14, 1539552), (16, 1347108), (21, 1026368), (24, 898072), (28, 769776), (29, 743232), (32, 673554), (42, 513184), (48, 449036), (49, 439872), (56, 384888), (58, 371616), (64, 336777), (79, 272832), (84, 256592), (87, 247744), (96, 224518), (98, 219936), (112, 192444), (116, 185808), (147, 146624), (158, 136416), (168, 128296), (174, 123872), (192, 112259), (196, 109968), (203, 106176), (224, 96222), (232, 92904), (237, 90944), (294, 73312), (316, 68208), (336, 64148), (348, 61936), (392, 54984), (406, 53088), (448, 48111), (464, 46452), (474, 45472), (553, 38976), (588, 36656), (609, 35392), (632, 34104), (672, 32074), (696, 30968), (784, 27492), (812, 26544), (928, 23226), (948, 22736), (1106, 19488), (1176, 18328), (1218, 17696), (1264, 17052), (1344, 16037), (1392, 15484), (1421, 15168), (1568, 13746), (1624, 13272), (1659, 12992), (1856, 11613), (1896, 11368), (2212, 9744), (2291, 9408), (2352, 9164), (2436, 8848), (2528, 8526), (2784, 7742), (2842, 7584), (3136, 6873), (3248, 6636), (3318, 6496), (3792, 5684), (3871, 5568), (4263, 5056), (4424, 4872), (4582, 4704)]