21555456

素因数分解:

$2^8\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1$

素因数の和:176

約数の個数: 144

約数和(自身を含む): 65931264

約数和(自身を除く): 44375808

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 17, 24, 26, 32, 34, 39, 48, 51, 52, 64, 68, 78, 96, 102, 104, 127, 128, 136, 156, 192, 204, 208, 221, 254, 256, 272, 312, 381, 384, 408, 416, 442, 508, 544, 624, 663, 762, 768, 816, 832, 884, 1016, 1088, 1248, 1326, 1524, 1632, 1651, 1664, 1768, 2032, 2159, 2176, 2496, 2652, 3048, 3264, 3302, 3328, 3536, 4064, 4318, 4352, 4953, 4992, 5304, 6096, 6477, 6528, 6604, 7072, 8128, 8636, 9906, 9984, 10608, 12192, 12954, 13056, 13208, 14144, 16256, 17272, 19812, 21216, 24384, 25908, 26416, 28067, 28288, 32512, 34544, 39624, 42432, 48768, 51816, 52832, 56134, 56576, 69088, 79248, 84201, 84864, 97536, 103632, 105664, 112268, 138176, 158496, 168402, 169728, 207264, 211328, 224536, 276352, 316992, 336804, 414528, 422656, 449072, 552704, 633984, 673608, 829056, 898144, 1267968, 1347216, 1658112, 1796288, 2694432, 3592576, 5388864, 7185152, 10777728, 21555456]

約数ペア:

[(1, 21555456), (2, 10777728), (3, 7185152), (4, 5388864), (6, 3592576), (8, 2694432), (12, 1796288), (13, 1658112), (16, 1347216), (17, 1267968), (24, 898144), (26, 829056), (32, 673608), (34, 633984), (39, 552704), (48, 449072), (51, 422656), (52, 414528), (64, 336804), (68, 316992), (78, 276352), (96, 224536), (102, 211328), (104, 207264), (127, 169728), (128, 168402), (136, 158496), (156, 138176), (192, 112268), (204, 105664), (208, 103632), (221, 97536), (254, 84864), (256, 84201), (272, 79248), (312, 69088), (381, 56576), (384, 56134), (408, 52832), (416, 51816), (442, 48768), (508, 42432), (544, 39624), (624, 34544), (663, 32512), (762, 28288), (768, 28067), (816, 26416), (832, 25908), (884, 24384), (1016, 21216), (1088, 19812), (1248, 17272), (1326, 16256), (1524, 14144), (1632, 13208), (1651, 13056), (1664, 12954), (1768, 12192), (2032, 10608), (2159, 9984), (2176, 9906), (2496, 8636), (2652, 8128), (3048, 7072), (3264, 6604), (3302, 6528), (3328, 6477), (3536, 6096), (4064, 5304), (4318, 4992), (4352, 4953)]