21057696

素因数分解:

$2^5\times 3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1$

素因数の和:84

約数の個数: 216

約数和(自身を含む): 72412704

約数和(自身を除く): 51355008

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 17, 18, 22, 23, 24, 32, 33, 34, 36, 44, 46, 48, 51, 66, 68, 69, 72, 88, 92, 96, 99, 102, 132, 136, 138, 144, 153, 176, 184, 187, 198, 204, 207, 253, 264, 272, 276, 288, 289, 306, 352, 368, 374, 391, 396, 408, 414, 506, 528, 544, 552, 561, 578, 612, 736, 748, 759, 782, 792, 816, 828, 867, 1012, 1056, 1104, 1122, 1156, 1173, 1224, 1496, 1518, 1564, 1584, 1632, 1656, 1683, 1734, 2024, 2208, 2244, 2277, 2312, 2346, 2448, 2601, 2992, 3036, 3128, 3168, 3179, 3312, 3366, 3468, 3519, 4048, 4301, 4488, 4554, 4624, 4692, 4896, 5202, 5984, 6072, 6256, 6358, 6624, 6647, 6732, 6936, 7038, 8096, 8602, 8976, 9108, 9248, 9384, 9537, 10404, 12144, 12512, 12716, 12903, 13294, 13464, 13872, 14076, 17204, 17952, 18216, 18768, 19074, 19941, 20808, 24288, 25432, 25806, 26588, 26928, 27744, 28152, 28611, 34408, 36432, 37536, 38148, 38709, 39882, 41616, 50864, 51612, 53176, 53856, 56304, 57222, 59823, 68816, 72864, 73117, 76296, 77418, 79764, 83232, 101728, 103224, 106352, 112608, 114444, 119646, 137632, 146234, 152592, 154836, 159528, 206448, 212704, 219351, 228888, 239292, 292468, 305184, 309672, 319056, 412896, 438702, 457776, 478584, 584936, 619344, 638112, 658053, 877404, 915552, 957168, 1169872, 1238688, 1316106, 1754808, 1914336, 2339744, 2632212, 3509616, 5264424, 7019232, 10528848, 21057696]

約数ペア:

[(1, 21057696), (2, 10528848), (3, 7019232), (4, 5264424), (6, 3509616), (8, 2632212), (9, 2339744), (11, 1914336), (12, 1754808), (16, 1316106), (17, 1238688), (18, 1169872), (22, 957168), (23, 915552), (24, 877404), (32, 658053), (33, 638112), (34, 619344), (36, 584936), (44, 478584), (46, 457776), (48, 438702), (51, 412896), (66, 319056), (68, 309672), (69, 305184), (72, 292468), (88, 239292), (92, 228888), (96, 219351), (99, 212704), (102, 206448), (132, 159528), (136, 154836), (138, 152592), (144, 146234), (153, 137632), (176, 119646), (184, 114444), (187, 112608), (198, 106352), (204, 103224), (207, 101728), (253, 83232), (264, 79764), (272, 77418), (276, 76296), (288, 73117), (289, 72864), (306, 68816), (352, 59823), (368, 57222), (374, 56304), (391, 53856), (396, 53176), (408, 51612), (414, 50864), (506, 41616), (528, 39882), (544, 38709), (552, 38148), (561, 37536), (578, 36432), (612, 34408), (736, 28611), (748, 28152), (759, 27744), (782, 26928), (792, 26588), (816, 25806), (828, 25432), (867, 24288), (1012, 20808), (1056, 19941), (1104, 19074), (1122, 18768), (1156, 18216), (1173, 17952), (1224, 17204), (1496, 14076), (1518, 13872), (1564, 13464), (1584, 13294), (1632, 12903), (1656, 12716), (1683, 12512), (1734, 12144), (2024, 10404), (2208, 9537), (2244, 9384), (2277, 9248), (2312, 9108), (2346, 8976), (2448, 8602), (2601, 8096), (2992, 7038), (3036, 6936), (3128, 6732), (3168, 6647), (3179, 6624), (3312, 6358), (3366, 6256), (3468, 6072), (3519, 5984), (4048, 5202), (4301, 4896), (4488, 4692), (4554, 4624)]