21906720

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{461}}^1$

素因数の和:496

約数の個数: 192

約数和(自身を含む): 83825280

約数和(自身を除く): 61918560

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, 461, 480, 495, 528, 540, 594, 660, 720, 792, 864, 880, 922, 990, 1056, 1080, 1188, 1320, 1383, 1440, 1485, 1584, 1760, 1844, 1980, 2160, 2305, 2376, 2640, 2766, 2970, 3168, 3688, 3960, 4149, 4320, 4610, 4752, 5071, 5280, 5532, 5940, 6915, 7376, 7920, 8298, 9220, 9504, 10142, 11064, 11880, 12447, 13830, 14752, 15213, 15840, 16596, 18440, 20284, 20745, 22128, 23760, 24894, 25355, 27660, 30426, 33192, 36880, 40568, 41490, 44256, 45639, 47520, 49788, 50710, 55320, 60852, 62235, 66384, 73760, 76065, 81136, 82980, 91278, 99576, 101420, 110640, 121704, 124470, 132768, 136917, 152130, 162272, 165960, 182556, 199152, 202840, 221280, 228195, 243408, 248940, 273834, 304260, 331920, 365112, 398304, 405680, 456390, 486816, 497880, 547668, 608520, 663840, 684585, 730224, 811360, 912780, 995760, 1095336, 1217040, 1369170, 1460448, 1825560, 1991520, 2190672, 2434080, 2738340, 3651120, 4381344, 5476680, 7302240, 10953360, 21906720]

約数ペア:

[(1, 21906720), (2, 10953360), (3, 7302240), (4, 5476680), (5, 4381344), (6, 3651120), (8, 2738340), (9, 2434080), (10, 2190672), (11, 1991520), (12, 1825560), (15, 1460448), (16, 1369170), (18, 1217040), (20, 1095336), (22, 995760), (24, 912780), (27, 811360), (30, 730224), (32, 684585), (33, 663840), (36, 608520), (40, 547668), (44, 497880), (45, 486816), (48, 456390), (54, 405680), (55, 398304), (60, 365112), (66, 331920), (72, 304260), (80, 273834), (88, 248940), (90, 243408), (96, 228195), (99, 221280), (108, 202840), (110, 199152), (120, 182556), (132, 165960), (135, 162272), (144, 152130), (160, 136917), (165, 132768), (176, 124470), (180, 121704), (198, 110640), (216, 101420), (220, 99576), (240, 91278), (264, 82980), (270, 81136), (288, 76065), (297, 73760), (330, 66384), (352, 62235), (360, 60852), (396, 55320), (432, 50710), (440, 49788), (461, 47520), (480, 45639), (495, 44256), (528, 41490), (540, 40568), (594, 36880), (660, 33192), (720, 30426), (792, 27660), (864, 25355), (880, 24894), (922, 23760), (990, 22128), (1056, 20745), (1080, 20284), (1188, 18440), (1320, 16596), (1383, 15840), (1440, 15213), (1485, 14752), (1584, 13830), (1760, 12447), (1844, 11880), (1980, 11064), (2160, 10142), (2305, 9504), (2376, 9220), (2640, 8298), (2766, 7920), (2970, 7376), (3168, 6915), (3688, 5940), (3960, 5532), (4149, 5280), (4320, 5071), (4610, 4752)]