21451008

素因数分解:

$2^8\times 3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:120

約数の個数: 144

約数和(自身を含む): 63576576

約数和(自身を除く): 42125568

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 31, 32, 34, 48, 51, 53, 62, 64, 68, 93, 96, 102, 106, 124, 128, 136, 159, 186, 192, 204, 212, 248, 256, 272, 318, 372, 384, 408, 424, 496, 527, 544, 636, 744, 768, 816, 848, 901, 992, 1054, 1088, 1272, 1488, 1581, 1632, 1643, 1696, 1802, 1984, 2108, 2176, 2544, 2703, 2976, 3162, 3264, 3286, 3392, 3604, 3968, 4216, 4352, 4929, 5088, 5406, 5952, 6324, 6528, 6572, 6784, 7208, 7936, 8432, 9858, 10176, 10812, 11904, 12648, 13056, 13144, 13568, 14416, 16864, 19716, 20352, 21624, 23808, 25296, 26288, 27931, 28832, 33728, 39432, 40704, 43248, 50592, 52576, 55862, 57664, 67456, 78864, 83793, 86496, 101184, 105152, 111724, 115328, 134912, 157728, 167586, 172992, 202368, 210304, 223448, 230656, 315456, 335172, 345984, 404736, 420608, 446896, 630912, 670344, 691968, 893792, 1261824, 1340688, 1787584, 2681376, 3575168, 5362752, 7150336, 10725504, 21451008]

約数ペア:

[(1, 21451008), (2, 10725504), (3, 7150336), (4, 5362752), (6, 3575168), (8, 2681376), (12, 1787584), (16, 1340688), (17, 1261824), (24, 893792), (31, 691968), (32, 670344), (34, 630912), (48, 446896), (51, 420608), (53, 404736), (62, 345984), (64, 335172), (68, 315456), (93, 230656), (96, 223448), (102, 210304), (106, 202368), (124, 172992), (128, 167586), (136, 157728), (159, 134912), (186, 115328), (192, 111724), (204, 105152), (212, 101184), (248, 86496), (256, 83793), (272, 78864), (318, 67456), (372, 57664), (384, 55862), (408, 52576), (424, 50592), (496, 43248), (527, 40704), (544, 39432), (636, 33728), (744, 28832), (768, 27931), (816, 26288), (848, 25296), (901, 23808), (992, 21624), (1054, 20352), (1088, 19716), (1272, 16864), (1488, 14416), (1581, 13568), (1632, 13144), (1643, 13056), (1696, 12648), (1802, 11904), (1984, 10812), (2108, 10176), (2176, 9858), (2544, 8432), (2703, 7936), (2976, 7208), (3162, 6784), (3264, 6572), (3286, 6528), (3392, 6324), (3604, 5952), (3968, 5406), (4216, 5088), (4352, 4929)]