21049600

素因数分解:

$2^8\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1$

素因数の和:73

約数の個数: 216

約数和(自身を含む): 63870912

約数和(自身を除く): 42821312

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 23, 25, 26, 32, 40, 44, 46, 50, 52, 55, 64, 65, 80, 88, 92, 100, 104, 110, 115, 128, 130, 143, 160, 176, 184, 200, 208, 220, 230, 253, 256, 260, 275, 286, 299, 320, 325, 352, 368, 400, 416, 440, 460, 506, 520, 550, 572, 575, 598, 640, 650, 704, 715, 736, 800, 832, 880, 920, 1012, 1040, 1100, 1144, 1150, 1196, 1265, 1280, 1300, 1408, 1430, 1472, 1495, 1600, 1664, 1760, 1840, 2024, 2080, 2200, 2288, 2300, 2392, 2530, 2600, 2816, 2860, 2944, 2990, 3200, 3289, 3328, 3520, 3575, 3680, 4048, 4160, 4400, 4576, 4600, 4784, 5060, 5200, 5720, 5888, 5980, 6325, 6400, 6578, 7040, 7150, 7360, 7475, 8096, 8320, 8800, 9152, 9200, 9568, 10120, 10400, 11440, 11960, 12650, 13156, 14080, 14300, 14720, 14950, 16192, 16445, 16640, 17600, 18304, 18400, 19136, 20240, 20800, 22880, 23920, 25300, 26312, 28600, 29440, 29900, 32384, 32890, 35200, 36608, 36800, 38272, 40480, 41600, 45760, 47840, 50600, 52624, 57200, 59800, 64768, 65780, 70400, 73600, 76544, 80960, 82225, 83200, 91520, 95680, 101200, 105248, 114400, 119600, 131560, 147200, 161920, 164450, 183040, 191360, 202400, 210496, 228800, 239200, 263120, 323840, 328900, 382720, 404800, 420992, 457600, 478400, 526240, 657800, 809600, 841984, 915200, 956800, 1052480, 1315600, 1619200, 1913600, 2104960, 2631200, 4209920, 5262400, 10524800, 21049600]

約数ペア:

[(1, 21049600), (2, 10524800), (4, 5262400), (5, 4209920), (8, 2631200), (10, 2104960), (11, 1913600), (13, 1619200), (16, 1315600), (20, 1052480), (22, 956800), (23, 915200), (25, 841984), (26, 809600), (32, 657800), (40, 526240), (44, 478400), (46, 457600), (50, 420992), (52, 404800), (55, 382720), (64, 328900), (65, 323840), (80, 263120), (88, 239200), (92, 228800), (100, 210496), (104, 202400), (110, 191360), (115, 183040), (128, 164450), (130, 161920), (143, 147200), (160, 131560), (176, 119600), (184, 114400), (200, 105248), (208, 101200), (220, 95680), (230, 91520), (253, 83200), (256, 82225), (260, 80960), (275, 76544), (286, 73600), (299, 70400), (320, 65780), (325, 64768), (352, 59800), (368, 57200), (400, 52624), (416, 50600), (440, 47840), (460, 45760), (506, 41600), (520, 40480), (550, 38272), (572, 36800), (575, 36608), (598, 35200), (640, 32890), (650, 32384), (704, 29900), (715, 29440), (736, 28600), (800, 26312), (832, 25300), (880, 23920), (920, 22880), (1012, 20800), (1040, 20240), (1100, 19136), (1144, 18400), (1150, 18304), (1196, 17600), (1265, 16640), (1280, 16445), (1300, 16192), (1408, 14950), (1430, 14720), (1472, 14300), (1495, 14080), (1600, 13156), (1664, 12650), (1760, 11960), (1840, 11440), (2024, 10400), (2080, 10120), (2200, 9568), (2288, 9200), (2300, 9152), (2392, 8800), (2530, 8320), (2600, 8096), (2816, 7475), (2860, 7360), (2944, 7150), (2990, 7040), (3200, 6578), (3289, 6400), (3328, 6325), (3520, 5980), (3575, 5888), (3680, 5720), (4048, 5200), (4160, 5060), (4400, 4784), (4576, 4600)]