21670656

素因数分解:

$2^8\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:194

約数の個数: 144

約数和(自身を含む): 68678400

約数和(自身を除く): 47007744

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 29, 32, 42, 48, 56, 58, 64, 84, 87, 96, 112, 116, 128, 139, 168, 174, 192, 203, 224, 232, 256, 278, 336, 348, 384, 406, 417, 448, 464, 556, 609, 672, 696, 768, 812, 834, 896, 928, 973, 1112, 1218, 1344, 1392, 1624, 1668, 1792, 1856, 1946, 2224, 2436, 2688, 2784, 2919, 3248, 3336, 3712, 3892, 4031, 4448, 4872, 5376, 5568, 5838, 6496, 6672, 7424, 7784, 8062, 8896, 9744, 11136, 11676, 12093, 12992, 13344, 15568, 16124, 17792, 19488, 22272, 23352, 24186, 25984, 26688, 28217, 31136, 32248, 35584, 38976, 46704, 48372, 51968, 53376, 56434, 62272, 64496, 77952, 84651, 93408, 96744, 106752, 112868, 124544, 128992, 155904, 169302, 186816, 193488, 225736, 249088, 257984, 338604, 373632, 386976, 451472, 515968, 677208, 747264, 773952, 902944, 1031936, 1354416, 1547904, 1805888, 2708832, 3095808, 3611776, 5417664, 7223552, 10835328, 21670656]

約数ペア:

[(1, 21670656), (2, 10835328), (3, 7223552), (4, 5417664), (6, 3611776), (7, 3095808), (8, 2708832), (12, 1805888), (14, 1547904), (16, 1354416), (21, 1031936), (24, 902944), (28, 773952), (29, 747264), (32, 677208), (42, 515968), (48, 451472), (56, 386976), (58, 373632), (64, 338604), (84, 257984), (87, 249088), (96, 225736), (112, 193488), (116, 186816), (128, 169302), (139, 155904), (168, 128992), (174, 124544), (192, 112868), (203, 106752), (224, 96744), (232, 93408), (256, 84651), (278, 77952), (336, 64496), (348, 62272), (384, 56434), (406, 53376), (417, 51968), (448, 48372), (464, 46704), (556, 38976), (609, 35584), (672, 32248), (696, 31136), (768, 28217), (812, 26688), (834, 25984), (896, 24186), (928, 23352), (973, 22272), (1112, 19488), (1218, 17792), (1344, 16124), (1392, 15568), (1624, 13344), (1668, 12992), (1792, 12093), (1856, 11676), (1946, 11136), (2224, 9744), (2436, 8896), (2688, 8062), (2784, 7784), (2919, 7424), (3248, 6672), (3336, 6496), (3712, 5838), (3892, 5568), (4031, 5376), (4448, 4872)]