21919920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1$

素因数の和:88

約数の個数: 240

約数和(自身を含む): 81637632

約数和(自身を除く): 59717712

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 19, 20, 22, 23, 24, 30, 33, 38, 40, 44, 46, 48, 55, 57, 60, 66, 69, 76, 80, 88, 92, 95, 110, 114, 115, 120, 132, 138, 152, 165, 176, 184, 190, 209, 220, 228, 230, 240, 253, 264, 276, 285, 304, 330, 345, 361, 368, 380, 418, 437, 440, 456, 460, 506, 528, 552, 570, 627, 660, 690, 722, 759, 760, 836, 874, 880, 912, 920, 1012, 1045, 1083, 1104, 1140, 1254, 1265, 1311, 1320, 1380, 1444, 1518, 1520, 1672, 1748, 1805, 1840, 2024, 2090, 2166, 2185, 2280, 2508, 2530, 2622, 2640, 2760, 2888, 3036, 3135, 3344, 3496, 3610, 3795, 3971, 4048, 4180, 4332, 4370, 4560, 4807, 5016, 5060, 5244, 5415, 5520, 5776, 6072, 6270, 6555, 6992, 7220, 7590, 7942, 8303, 8360, 8664, 8740, 9614, 10032, 10120, 10488, 10830, 11913, 12144, 12540, 13110, 14421, 14440, 15180, 15884, 16606, 16720, 17328, 17480, 19228, 19855, 20240, 20976, 21660, 23826, 24035, 24909, 25080, 26220, 28842, 28880, 30360, 31768, 33212, 34960, 38456, 39710, 41515, 43320, 47652, 48070, 49818, 50160, 52440, 57684, 59565, 60720, 63536, 66424, 72105, 76912, 79420, 83030, 86640, 91333, 95304, 96140, 99636, 104880, 115368, 119130, 124545, 132848, 144210, 158840, 166060, 182666, 190608, 192280, 199272, 230736, 238260, 249090, 273999, 288420, 317680, 332120, 365332, 384560, 398544, 456665, 476520, 498180, 547998, 576840, 664240, 730664, 913330, 953040, 996360, 1095996, 1153680, 1369995, 1461328, 1826660, 1992720, 2191992, 2739990, 3653320, 4383984, 5479980, 7306640, 10959960, 21919920]

約数ペア:

[(1, 21919920), (2, 10959960), (3, 7306640), (4, 5479980), (5, 4383984), (6, 3653320), (8, 2739990), (10, 2191992), (11, 1992720), (12, 1826660), (15, 1461328), (16, 1369995), (19, 1153680), (20, 1095996), (22, 996360), (23, 953040), (24, 913330), (30, 730664), (33, 664240), (38, 576840), (40, 547998), (44, 498180), (46, 476520), (48, 456665), (55, 398544), (57, 384560), (60, 365332), (66, 332120), (69, 317680), (76, 288420), (80, 273999), (88, 249090), (92, 238260), (95, 230736), (110, 199272), (114, 192280), (115, 190608), (120, 182666), (132, 166060), (138, 158840), (152, 144210), (165, 132848), (176, 124545), (184, 119130), (190, 115368), (209, 104880), (220, 99636), (228, 96140), (230, 95304), (240, 91333), (253, 86640), (264, 83030), (276, 79420), (285, 76912), (304, 72105), (330, 66424), (345, 63536), (361, 60720), (368, 59565), (380, 57684), (418, 52440), (437, 50160), (440, 49818), (456, 48070), (460, 47652), (506, 43320), (528, 41515), (552, 39710), (570, 38456), (627, 34960), (660, 33212), (690, 31768), (722, 30360), (759, 28880), (760, 28842), (836, 26220), (874, 25080), (880, 24909), (912, 24035), (920, 23826), (1012, 21660), (1045, 20976), (1083, 20240), (1104, 19855), (1140, 19228), (1254, 17480), (1265, 17328), (1311, 16720), (1320, 16606), (1380, 15884), (1444, 15180), (1518, 14440), (1520, 14421), (1672, 13110), (1748, 12540), (1805, 12144), (1840, 11913), (2024, 10830), (2090, 10488), (2166, 10120), (2185, 10032), (2280, 9614), (2508, 8740), (2530, 8664), (2622, 8360), (2640, 8303), (2760, 7942), (2888, 7590), (3036, 7220), (3135, 6992), (3344, 6555), (3496, 6270), (3610, 6072), (3795, 5776), (3971, 5520), (4048, 5415), (4180, 5244), (4332, 5060), (4370, 5016), (4560, 4807)]