21193920

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1$

素因数の和:260

約数の個数: 224

約数和(自身を含む): 81930240

約数和(自身を除く): 60736320

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, 64, 66, 72, 80, 88, 90, 96, 99, 108, 110, 120, 132, 135, 144, 160, 165, 176, 180, 192, 198, 216, 220, 223, 240, 264, 270, 288, 297, 320, 330, 352, 360, 396, 432, 440, 446, 480, 495, 528, 540, 576, 594, 660, 669, 704, 720, 792, 864, 880, 892, 960, 990, 1056, 1080, 1115, 1188, 1320, 1338, 1440, 1485, 1584, 1728, 1760, 1784, 1980, 2007, 2112, 2160, 2230, 2376, 2453, 2640, 2676, 2880, 2970, 3168, 3345, 3520, 3568, 3960, 4014, 4320, 4460, 4752, 4906, 5280, 5352, 5940, 6021, 6336, 6690, 7136, 7359, 7920, 8028, 8640, 8920, 9504, 9812, 10035, 10560, 10704, 11880, 12042, 12265, 13380, 14272, 14718, 15840, 16056, 17840, 19008, 19624, 20070, 21408, 22077, 23760, 24084, 24530, 26760, 29436, 30105, 31680, 32112, 35680, 36795, 39248, 40140, 42816, 44154, 47520, 48168, 49060, 53520, 58872, 60210, 64224, 66231, 71360, 73590, 78496, 80280, 88308, 95040, 96336, 98120, 107040, 110385, 117744, 120420, 128448, 132462, 147180, 156992, 160560, 176616, 192672, 196240, 214080, 220770, 235488, 240840, 264924, 294360, 321120, 331155, 353232, 385344, 392480, 441540, 470976, 481680, 529848, 588720, 642240, 662310, 706464, 784960, 883080, 963360, 1059696, 1177440, 1324620, 1412928, 1766160, 1926720, 2119392, 2354880, 2649240, 3532320, 4238784, 5298480, 7064640, 10596960, 21193920]

約数ペア:

[(1, 21193920), (2, 10596960), (3, 7064640), (4, 5298480), (5, 4238784), (6, 3532320), (8, 2649240), (9, 2354880), (10, 2119392), (11, 1926720), (12, 1766160), (15, 1412928), (16, 1324620), (18, 1177440), (20, 1059696), (22, 963360), (24, 883080), (27, 784960), (30, 706464), (32, 662310), (33, 642240), (36, 588720), (40, 529848), (44, 481680), (45, 470976), (48, 441540), (54, 392480), (55, 385344), (60, 353232), (64, 331155), (66, 321120), (72, 294360), (80, 264924), (88, 240840), (90, 235488), (96, 220770), (99, 214080), (108, 196240), (110, 192672), (120, 176616), (132, 160560), (135, 156992), (144, 147180), (160, 132462), (165, 128448), (176, 120420), (180, 117744), (192, 110385), (198, 107040), (216, 98120), (220, 96336), (223, 95040), (240, 88308), (264, 80280), (270, 78496), (288, 73590), (297, 71360), (320, 66231), (330, 64224), (352, 60210), (360, 58872), (396, 53520), (432, 49060), (440, 48168), (446, 47520), (480, 44154), (495, 42816), (528, 40140), (540, 39248), (576, 36795), (594, 35680), (660, 32112), (669, 31680), (704, 30105), (720, 29436), (792, 26760), (864, 24530), (880, 24084), (892, 23760), (960, 22077), (990, 21408), (1056, 20070), (1080, 19624), (1115, 19008), (1188, 17840), (1320, 16056), (1338, 15840), (1440, 14718), (1485, 14272), (1584, 13380), (1728, 12265), (1760, 12042), (1784, 11880), (1980, 10704), (2007, 10560), (2112, 10035), (2160, 9812), (2230, 9504), (2376, 8920), (2453, 8640), (2640, 8028), (2676, 7920), (2880, 7359), (2970, 7136), (3168, 6690), (3345, 6336), (3520, 6021), (3568, 5940), (3960, 5352), (4014, 5280), (4320, 4906), (4460, 4752)]