21216888

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:162

約数の個数: 192

約数和(自身を含む): 74131200

約数和(自身を除く): 52914312

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 18, 21, 22, 24, 28, 33, 36, 42, 43, 44, 56, 63, 66, 72, 77, 84, 86, 88, 89, 99, 126, 129, 132, 154, 168, 172, 178, 198, 231, 252, 258, 264, 267, 301, 308, 344, 356, 387, 396, 462, 473, 504, 516, 534, 602, 616, 623, 693, 712, 774, 792, 801, 903, 924, 946, 979, 1032, 1068, 1204, 1246, 1386, 1419, 1548, 1602, 1806, 1848, 1869, 1892, 1958, 2136, 2408, 2492, 2709, 2772, 2838, 2937, 3096, 3204, 3311, 3612, 3738, 3784, 3827, 3916, 4257, 4984, 5418, 5544, 5607, 5676, 5874, 6408, 6622, 6853, 7224, 7476, 7654, 7832, 8514, 8811, 9933, 10836, 11214, 11352, 11481, 11748, 13244, 13706, 14952, 15308, 17028, 17622, 19866, 20559, 21672, 22428, 22962, 23496, 26488, 26789, 27412, 29799, 30616, 34056, 34443, 35244, 39732, 41118, 42097, 44856, 45924, 53578, 54824, 59598, 61677, 68886, 70488, 79464, 80367, 82236, 84194, 91848, 107156, 119196, 123354, 126291, 137772, 160734, 164472, 168388, 214312, 238392, 241101, 246708, 252582, 275544, 294679, 321468, 336776, 378873, 482202, 493416, 505164, 589358, 642936, 757746, 884037, 964404, 1010328, 1178716, 1515492, 1768074, 1928808, 2357432, 2652111, 3030984, 3536148, 5304222, 7072296, 10608444, 21216888]

約数ペア:

[(1, 21216888), (2, 10608444), (3, 7072296), (4, 5304222), (6, 3536148), (7, 3030984), (8, 2652111), (9, 2357432), (11, 1928808), (12, 1768074), (14, 1515492), (18, 1178716), (21, 1010328), (22, 964404), (24, 884037), (28, 757746), (33, 642936), (36, 589358), (42, 505164), (43, 493416), (44, 482202), (56, 378873), (63, 336776), (66, 321468), (72, 294679), (77, 275544), (84, 252582), (86, 246708), (88, 241101), (89, 238392), (99, 214312), (126, 168388), (129, 164472), (132, 160734), (154, 137772), (168, 126291), (172, 123354), (178, 119196), (198, 107156), (231, 91848), (252, 84194), (258, 82236), (264, 80367), (267, 79464), (301, 70488), (308, 68886), (344, 61677), (356, 59598), (387, 54824), (396, 53578), (462, 45924), (473, 44856), (504, 42097), (516, 41118), (534, 39732), (602, 35244), (616, 34443), (623, 34056), (693, 30616), (712, 29799), (774, 27412), (792, 26789), (801, 26488), (903, 23496), (924, 22962), (946, 22428), (979, 21672), (1032, 20559), (1068, 19866), (1204, 17622), (1246, 17028), (1386, 15308), (1419, 14952), (1548, 13706), (1602, 13244), (1806, 11748), (1848, 11481), (1869, 11352), (1892, 11214), (1958, 10836), (2136, 9933), (2408, 8811), (2492, 8514), (2709, 7832), (2772, 7654), (2838, 7476), (2937, 7224), (3096, 6853), (3204, 6622), (3311, 6408), (3612, 5874), (3738, 5676), (3784, 5607), (3827, 5544), (3916, 5418), (4257, 4984)]