20471808

素因数分解:

$2^{13}\times 3^1\times 7^2\times {\mathrm{17}}^1$

素因数の和:60

約数の個数: 168

約数和(自身を含む): 67235832

約数和(自身を除く): 46764024

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 17, 21, 24, 28, 32, 34, 42, 48, 49, 51, 56, 64, 68, 84, 96, 98, 102, 112, 119, 128, 136, 147, 168, 192, 196, 204, 224, 238, 256, 272, 294, 336, 357, 384, 392, 408, 448, 476, 512, 544, 588, 672, 714, 768, 784, 816, 833, 896, 952, 1024, 1088, 1176, 1344, 1428, 1536, 1568, 1632, 1666, 1792, 1904, 2048, 2176, 2352, 2499, 2688, 2856, 3072, 3136, 3264, 3332, 3584, 3808, 4096, 4352, 4704, 4998, 5376, 5712, 6144, 6272, 6528, 6664, 7168, 7616, 8192, 8704, 9408, 9996, 10752, 11424, 12288, 12544, 13056, 13328, 14336, 15232, 17408, 18816, 19992, 21504, 22848, 24576, 25088, 26112, 26656, 28672, 30464, 34816, 37632, 39984, 43008, 45696, 50176, 52224, 53312, 57344, 60928, 69632, 75264, 79968, 86016, 91392, 100352, 104448, 106624, 121856, 139264, 150528, 159936, 172032, 182784, 200704, 208896, 213248, 243712, 301056, 319872, 365568, 401408, 417792, 426496, 487424, 602112, 639744, 731136, 852992, 974848, 1204224, 1279488, 1462272, 1705984, 2558976, 2924544, 3411968, 5117952, 6823936, 10235904, 20471808]

約数ペア:

[(1, 20471808), (2, 10235904), (3, 6823936), (4, 5117952), (6, 3411968), (7, 2924544), (8, 2558976), (12, 1705984), (14, 1462272), (16, 1279488), (17, 1204224), (21, 974848), (24, 852992), (28, 731136), (32, 639744), (34, 602112), (42, 487424), (48, 426496), (49, 417792), (51, 401408), (56, 365568), (64, 319872), (68, 301056), (84, 243712), (96, 213248), (98, 208896), (102, 200704), (112, 182784), (119, 172032), (128, 159936), (136, 150528), (147, 139264), (168, 121856), (192, 106624), (196, 104448), (204, 100352), (224, 91392), (238, 86016), (256, 79968), (272, 75264), (294, 69632), (336, 60928), (357, 57344), (384, 53312), (392, 52224), (408, 50176), (448, 45696), (476, 43008), (512, 39984), (544, 37632), (588, 34816), (672, 30464), (714, 28672), (768, 26656), (784, 26112), (816, 25088), (833, 24576), (896, 22848), (952, 21504), (1024, 19992), (1088, 18816), (1176, 17408), (1344, 15232), (1428, 14336), (1536, 13328), (1568, 13056), (1632, 12544), (1666, 12288), (1792, 11424), (1904, 10752), (2048, 9996), (2176, 9408), (2352, 8704), (2499, 8192), (2688, 7616), (2856, 7168), (3072, 6664), (3136, 6528), (3264, 6272), (3332, 6144), (3584, 5712), (3808, 5376), (4096, 4998), (4352, 4704)]