21090960

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2663}}^1$

素因数の和:2693

約数の個数: 120

約数和(自身を含む): 77298624

約数和(自身を除く): 56207664

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2640, 2663, 3960, 5326, 7920, 7989, 10652, 13315, 15978, 21304, 23967, 26630, 29293, 31956, 39945, 42608, 47934, 53260, 58586, 63912, 79890, 87879, 95868, 106520, 117172, 119835, 127824, 146465, 159780, 175758, 191736, 213040, 234344, 239670, 263637, 292930, 319560, 351516, 383472, 439395, 468688, 479340, 527274, 585860, 639120, 703032, 878790, 958680, 1054548, 1171720, 1318185, 1406064, 1757580, 1917360, 2109096, 2343440, 2636370, 3515160, 4218192, 5272740, 7030320, 10545480, 21090960]

約数ペア:

[(1, 21090960), (2, 10545480), (3, 7030320), (4, 5272740), (5, 4218192), (6, 3515160), (8, 2636370), (9, 2343440), (10, 2109096), (11, 1917360), (12, 1757580), (15, 1406064), (16, 1318185), (18, 1171720), (20, 1054548), (22, 958680), (24, 878790), (30, 703032), (33, 639120), (36, 585860), (40, 527274), (44, 479340), (45, 468688), (48, 439395), (55, 383472), (60, 351516), (66, 319560), (72, 292930), (80, 263637), (88, 239670), (90, 234344), (99, 213040), (110, 191736), (120, 175758), (132, 159780), (144, 146465), (165, 127824), (176, 119835), (180, 117172), (198, 106520), (220, 95868), (240, 87879), (264, 79890), (330, 63912), (360, 58586), (396, 53260), (440, 47934), (495, 42608), (528, 39945), (660, 31956), (720, 29293), (792, 26630), (880, 23967), (990, 21304), (1320, 15978), (1584, 13315), (1980, 10652), (2640, 7989), (2663, 7920), (3960, 5326)]