21000107520

素因数分解:

$2^9\times 3^3\times 5^1\times 7^1\times {\mathrm{43403}}^1$

素因数の和:43442

約数の個数: 320

約数和(自身を含む): 85252400640

約数和(自身を除く): 64252293120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 128, 135, 140, 144, 160, 168, 180, 189, 192, 210, 216, 224, 240, 252, 256, 270, 280, 288, 315, 320, 336, 360, 378, 384, 420, 432, 448, 480, 504, 512, 540, 560, 576, 630, 640, 672, 720, 756, 768, 840, 864, 896, 945, 960, 1008, 1080, 1120, 1152, 1260, 1280, 1344, 1440, 1512, 1536, 1680, 1728, 1792, 1890, 1920, 2016, 2160, 2240, 2304, 2520, 2560, 2688, 2880, 3024, 3360, 3456, 3584, 3780, 3840, 4032, 4320, 4480, 4608, 5040, 5376, 5760, 6048, 6720, 6912, 7560, 7680, 8064, 8640, 8960, 10080, 10752, 11520, 12096, 13440, 13824, 15120, 16128, 17280, 17920, 20160, 23040, 24192, 26880, 30240, 32256, 34560, 40320, 43403, 48384, 53760, 60480, 69120, 80640, 86806, 96768, 120960, 130209, 161280, 173612, 217015, 241920, 260418, 303821, 347224, 390627, 434030, 483840, 520836, 607642, 651045, 694448, 781254, 868060, 911463, 1041672, 1171881, 1215284, 1302090, 1388896, 1519105, 1562508, 1736120, 1822926, 1953135, 2083344, 2343762, 2430568, 2604180, 2734389, 2777792, 3038210, 3125016, 3472240, 3645852, 3906270, 4166688, 4557315, 4687524, 4861136, 5208360, 5468778, 5555584, 5859405, 6076420, 6250032, 6944480, 7291704, 7812540, 8203167, 8333376, 9114630, 9375048, 9722272, 10416720, 10937556, 11111168, 11718810, 12152840, 12500064, 13671945, 13888960, 14583408, 15625080, 16406334, 16666752, 18229260, 18750096, 19444544, 20833440, 21875112, 22222336, 23437620, 24305680, 25000128, 27343890, 27777920, 29166816, 31250160, 32812668, 33333504, 36458520, 37500192, 38889088, 41015835, 41666880, 43750224, 46875240, 48611360, 50000256, 54687780, 55555840, 58333632, 62500320, 65625336, 66667008, 72917040, 75000384, 77778176, 82031670, 83333760, 87500448, 93750480, 97222720, 100000512, 109375560, 111111680, 116667264, 125000640, 131250672, 145834080, 150000768, 155556352, 164063340, 166667520, 175000896, 187500960, 194445440, 200001024, 218751120, 233334528, 250001280, 262501344, 291668160, 300001536, 328126680, 333335040, 350001792, 375001920, 388890880, 437502240, 466669056, 500002560, 525002688, 583336320, 600003072, 656253360, 700003584, 750003840, 777781760, 875004480, 1000005120, 1050005376, 1166672640, 1312506720, 1400007168, 1500007680, 1750008960, 2100010752, 2333345280, 2625013440, 3000015360, 3500017920, 4200021504, 5250026880, 7000035840, 10500053760, 21000107520]

約数ペア:

[(1, 21000107520), (2, 10500053760), (3, 7000035840), (4, 5250026880), (5, 4200021504), (6, 3500017920), (7, 3000015360), (8, 2625013440), (9, 2333345280), (10, 2100010752), (12, 1750008960), (14, 1500007680), (15, 1400007168), (16, 1312506720), (18, 1166672640), (20, 1050005376), (21, 1000005120), (24, 875004480), (27, 777781760), (28, 750003840), (30, 700003584), (32, 656253360), (35, 600003072), (36, 583336320), (40, 525002688), (42, 500002560), (45, 466669056), (48, 437502240), (54, 388890880), (56, 375001920), (60, 350001792), (63, 333335040), (64, 328126680), (70, 300001536), (72, 291668160), (80, 262501344), (84, 250001280), (90, 233334528), (96, 218751120), (105, 200001024), (108, 194445440), (112, 187500960), (120, 175000896), (126, 166667520), (128, 164063340), (135, 155556352), (140, 150000768), (144, 145834080), (160, 131250672), (168, 125000640), (180, 116667264), (189, 111111680), (192, 109375560), (210, 100000512), (216, 97222720), (224, 93750480), (240, 87500448), (252, 83333760), (256, 82031670), (270, 77778176), (280, 75000384), (288, 72917040), (315, 66667008), (320, 65625336), (336, 62500320), (360, 58333632), (378, 55555840), (384, 54687780), (420, 50000256), (432, 48611360), (448, 46875240), (480, 43750224), (504, 41666880), (512, 41015835), (540, 38889088), (560, 37500192), (576, 36458520), (630, 33333504), (640, 32812668), (672, 31250160), (720, 29166816), (756, 27777920), (768, 27343890), (840, 25000128), (864, 24305680), (896, 23437620), (945, 22222336), (960, 21875112), (1008, 20833440), (1080, 19444544), (1120, 18750096), (1152, 18229260), (1260, 16666752), (1280, 16406334), (1344, 15625080), (1440, 14583408), (1512, 13888960), (1536, 13671945), (1680, 12500064), (1728, 12152840), (1792, 11718810), (1890, 11111168), (1920, 10937556), (2016, 10416720), (2160, 9722272), (2240, 9375048), (2304, 9114630), (2520, 8333376), (2560, 8203167), (2688, 7812540), (2880, 7291704), (3024, 6944480), (3360, 6250032), (3456, 6076420), (3584, 5859405), (3780, 5555584), (3840, 5468778), (4032, 5208360), (4320, 4861136), (4480, 4687524), (4608, 4557315), (5040, 4166688), (5376, 3906270), (5760, 3645852), (6048, 3472240), (6720, 3125016), (6912, 3038210), (7560, 2777792), (7680, 2734389), (8064, 2604180), (8640, 2430568), (8960, 2343762), (10080, 2083344), (10752, 1953135), (11520, 1822926), (12096, 1736120), (13440, 1562508), (13824, 1519105), (15120, 1388896), (16128, 1302090), (17280, 1215284), (17920, 1171881), (20160, 1041672), (23040, 911463), (24192, 868060), (26880, 781254), (30240, 694448), (32256, 651045), (34560, 607642), (40320, 520836), (43403, 483840), (48384, 434030), (53760, 390627), (60480, 347224), (69120, 303821), (80640, 260418), (86806, 241920), (96768, 217015), (120960, 173612), (130209, 161280)]