21716640

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{457}}^1$

素因数の和:492

約数の個数: 192

約数和(自身を含む): 83099520

約数和(自身を除く): 61382880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 32, 33, 36, 40, 44, 45, 48, 54, 55, 60, 66, 72, 80, 88, 90, 96, 99, 108, 110, 120, 132, 135, 144, 160, 165, 176, 180, 198, 216, 220, 240, 264, 270, 288, 297, 330, 352, 360, 396, 432, 440, 457, 480, 495, 528, 540, 594, 660, 720, 792, 864, 880, 914, 990, 1056, 1080, 1188, 1320, 1371, 1440, 1485, 1584, 1760, 1828, 1980, 2160, 2285, 2376, 2640, 2742, 2970, 3168, 3656, 3960, 4113, 4320, 4570, 4752, 5027, 5280, 5484, 5940, 6855, 7312, 7920, 8226, 9140, 9504, 10054, 10968, 11880, 12339, 13710, 14624, 15081, 15840, 16452, 18280, 20108, 20565, 21936, 23760, 24678, 25135, 27420, 30162, 32904, 36560, 40216, 41130, 43872, 45243, 47520, 49356, 50270, 54840, 60324, 61695, 65808, 73120, 75405, 80432, 82260, 90486, 98712, 100540, 109680, 120648, 123390, 131616, 135729, 150810, 160864, 164520, 180972, 197424, 201080, 219360, 226215, 241296, 246780, 271458, 301620, 329040, 361944, 394848, 402160, 452430, 482592, 493560, 542916, 603240, 658080, 678645, 723888, 804320, 904860, 987120, 1085832, 1206480, 1357290, 1447776, 1809720, 1974240, 2171664, 2412960, 2714580, 3619440, 4343328, 5429160, 7238880, 10858320, 21716640]

約数ペア:

[(1, 21716640), (2, 10858320), (3, 7238880), (4, 5429160), (5, 4343328), (6, 3619440), (8, 2714580), (9, 2412960), (10, 2171664), (11, 1974240), (12, 1809720), (15, 1447776), (16, 1357290), (18, 1206480), (20, 1085832), (22, 987120), (24, 904860), (27, 804320), (30, 723888), (32, 678645), (33, 658080), (36, 603240), (40, 542916), (44, 493560), (45, 482592), (48, 452430), (54, 402160), (55, 394848), (60, 361944), (66, 329040), (72, 301620), (80, 271458), (88, 246780), (90, 241296), (96, 226215), (99, 219360), (108, 201080), (110, 197424), (120, 180972), (132, 164520), (135, 160864), (144, 150810), (160, 135729), (165, 131616), (176, 123390), (180, 120648), (198, 109680), (216, 100540), (220, 98712), (240, 90486), (264, 82260), (270, 80432), (288, 75405), (297, 73120), (330, 65808), (352, 61695), (360, 60324), (396, 54840), (432, 50270), (440, 49356), (457, 47520), (480, 45243), (495, 43872), (528, 41130), (540, 40216), (594, 36560), (660, 32904), (720, 30162), (792, 27420), (864, 25135), (880, 24678), (914, 23760), (990, 21936), (1056, 20565), (1080, 20108), (1188, 18280), (1320, 16452), (1371, 15840), (1440, 15081), (1485, 14624), (1584, 13710), (1760, 12339), (1828, 11880), (1980, 10968), (2160, 10054), (2285, 9504), (2376, 9140), (2640, 8226), (2742, 7920), (2970, 7312), (3168, 6855), (3656, 5940), (3960, 5484), (4113, 5280), (4320, 5027), (4570, 4752)]