21277080

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1$

素因数の和:236

約数の個数: 192

約数和(自身を含む): 78624000

約数和(自身を除く): 57346920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 54, 55, 60, 66, 72, 81, 88, 90, 99, 108, 110, 120, 132, 135, 162, 165, 180, 198, 199, 216, 220, 243, 264, 270, 297, 324, 330, 360, 396, 398, 405, 440, 486, 495, 540, 594, 597, 648, 660, 792, 796, 810, 891, 972, 990, 995, 1080, 1188, 1194, 1215, 1320, 1485, 1592, 1620, 1782, 1791, 1944, 1980, 1990, 2189, 2376, 2388, 2430, 2673, 2970, 2985, 3240, 3564, 3582, 3960, 3980, 4378, 4455, 4776, 4860, 5346, 5373, 5940, 5970, 6567, 7128, 7164, 7960, 8756, 8910, 8955, 9720, 10692, 10746, 10945, 11880, 11940, 13134, 13365, 14328, 16119, 17512, 17820, 17910, 19701, 21384, 21492, 21890, 23880, 26268, 26730, 26865, 32238, 32835, 35640, 35820, 39402, 42984, 43780, 48357, 52536, 53460, 53730, 59103, 64476, 65670, 71640, 78804, 80595, 87560, 96714, 98505, 106920, 107460, 118206, 128952, 131340, 157608, 161190, 177309, 193428, 197010, 214920, 236412, 241785, 262680, 295515, 322380, 354618, 386856, 394020, 472824, 483570, 531927, 591030, 644760, 709236, 788040, 886545, 967140, 1063854, 1182060, 1418472, 1773090, 1934280, 2127708, 2364120, 2659635, 3546180, 4255416, 5319270, 7092360, 10638540, 21277080]

約数ペア:

[(1, 21277080), (2, 10638540), (3, 7092360), (4, 5319270), (5, 4255416), (6, 3546180), (8, 2659635), (9, 2364120), (10, 2127708), (11, 1934280), (12, 1773090), (15, 1418472), (18, 1182060), (20, 1063854), (22, 967140), (24, 886545), (27, 788040), (30, 709236), (33, 644760), (36, 591030), (40, 531927), (44, 483570), (45, 472824), (54, 394020), (55, 386856), (60, 354618), (66, 322380), (72, 295515), (81, 262680), (88, 241785), (90, 236412), (99, 214920), (108, 197010), (110, 193428), (120, 177309), (132, 161190), (135, 157608), (162, 131340), (165, 128952), (180, 118206), (198, 107460), (199, 106920), (216, 98505), (220, 96714), (243, 87560), (264, 80595), (270, 78804), (297, 71640), (324, 65670), (330, 64476), (360, 59103), (396, 53730), (398, 53460), (405, 52536), (440, 48357), (486, 43780), (495, 42984), (540, 39402), (594, 35820), (597, 35640), (648, 32835), (660, 32238), (792, 26865), (796, 26730), (810, 26268), (891, 23880), (972, 21890), (990, 21492), (995, 21384), (1080, 19701), (1188, 17910), (1194, 17820), (1215, 17512), (1320, 16119), (1485, 14328), (1592, 13365), (1620, 13134), (1782, 11940), (1791, 11880), (1944, 10945), (1980, 10746), (1990, 10692), (2189, 9720), (2376, 8955), (2388, 8910), (2430, 8756), (2673, 7960), (2970, 7164), (2985, 7128), (3240, 6567), (3564, 5970), (3582, 5940), (3960, 5373), (3980, 5346), (4378, 4860), (4455, 4776)]