21000832320

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{129443}}^1$

素因数の和:129489

約数の個数: 168

約数和(自身を含む): 72201792096

約数和(自身を除く): 51200959776

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 169, 192, 195, 208, 240, 260, 312, 320, 338, 390, 416, 480, 507, 520, 624, 676, 780, 832, 845, 960, 1014, 1040, 1248, 1352, 1560, 1690, 2028, 2080, 2496, 2535, 2704, 3120, 3380, 4056, 4160, 5070, 5408, 6240, 6760, 8112, 10140, 10816, 12480, 13520, 16224, 20280, 27040, 32448, 40560, 54080, 81120, 129443, 162240, 258886, 388329, 517772, 647215, 776658, 1035544, 1294430, 1553316, 1682759, 1941645, 2071088, 2588860, 3106632, 3365518, 3883290, 4142176, 5048277, 5177720, 6213264, 6731036, 7766580, 8284352, 8413795, 10096554, 10355440, 12426528, 13462072, 15533160, 16827590, 20193108, 20710880, 21875867, 24853056, 25241385, 26924144, 31066320, 33655180, 40386216, 41421760, 43751734, 50482770, 53848288, 62132640, 65627601, 67310360, 80772432, 87503468, 100965540, 107696576, 109379335, 124265280, 131255202, 134620720, 161544864, 175006936, 201931080, 218758670, 262510404, 269241440, 323089728, 328138005, 350013872, 403862160, 437517340, 525020808, 538482880, 656276010, 700027744, 807724320, 875034680, 1050041616, 1312552020, 1400055488, 1615448640, 1750069360, 2100083232, 2625104040, 3500138720, 4200166464, 5250208080, 7000277440, 10500416160, 21000832320]

約数ペア:

[(1, 21000832320), (2, 10500416160), (3, 7000277440), (4, 5250208080), (5, 4200166464), (6, 3500138720), (8, 2625104040), (10, 2100083232), (12, 1750069360), (13, 1615448640), (15, 1400055488), (16, 1312552020), (20, 1050041616), (24, 875034680), (26, 807724320), (30, 700027744), (32, 656276010), (39, 538482880), (40, 525020808), (48, 437517340), (52, 403862160), (60, 350013872), (64, 328138005), (65, 323089728), (78, 269241440), (80, 262510404), (96, 218758670), (104, 201931080), (120, 175006936), (130, 161544864), (156, 134620720), (160, 131255202), (169, 124265280), (192, 109379335), (195, 107696576), (208, 100965540), (240, 87503468), (260, 80772432), (312, 67310360), (320, 65627601), (338, 62132640), (390, 53848288), (416, 50482770), (480, 43751734), (507, 41421760), (520, 40386216), (624, 33655180), (676, 31066320), (780, 26924144), (832, 25241385), (845, 24853056), (960, 21875867), (1014, 20710880), (1040, 20193108), (1248, 16827590), (1352, 15533160), (1560, 13462072), (1690, 12426528), (2028, 10355440), (2080, 10096554), (2496, 8413795), (2535, 8284352), (2704, 7766580), (3120, 6731036), (3380, 6213264), (4056, 5177720), (4160, 5048277), (5070, 4142176), (5408, 3883290), (6240, 3365518), (6760, 3106632), (8112, 2588860), (10140, 2071088), (10816, 1941645), (12480, 1682759), (13520, 1553316), (16224, 1294430), (20280, 1035544), (27040, 776658), (32448, 647215), (40560, 517772), (54080, 388329), (81120, 258886), (129443, 162240)]