21757120

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{883}}^1$

素因数の和:918

約数の個数: 112

約数和(自身を含む): 64666368

約数和(自身を除く): 42909248

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 140, 154, 160, 176, 220, 224, 280, 308, 320, 352, 385, 440, 448, 560, 616, 704, 770, 880, 883, 1120, 1232, 1540, 1760, 1766, 2240, 2464, 3080, 3520, 3532, 4415, 4928, 6160, 6181, 7064, 8830, 9713, 12320, 12362, 14128, 17660, 19426, 24640, 24724, 28256, 30905, 35320, 38852, 48565, 49448, 56512, 61810, 67991, 70640, 77704, 97130, 98896, 123620, 135982, 141280, 155408, 194260, 197792, 247240, 271964, 282560, 310816, 339955, 388520, 395584, 494480, 543928, 621632, 679910, 777040, 988960, 1087856, 1359820, 1554080, 1977920, 2175712, 2719640, 3108160, 4351424, 5439280, 10878560, 21757120]

約数ペア:

[(1, 21757120), (2, 10878560), (4, 5439280), (5, 4351424), (7, 3108160), (8, 2719640), (10, 2175712), (11, 1977920), (14, 1554080), (16, 1359820), (20, 1087856), (22, 988960), (28, 777040), (32, 679910), (35, 621632), (40, 543928), (44, 494480), (55, 395584), (56, 388520), (64, 339955), (70, 310816), (77, 282560), (80, 271964), (88, 247240), (110, 197792), (112, 194260), (140, 155408), (154, 141280), (160, 135982), (176, 123620), (220, 98896), (224, 97130), (280, 77704), (308, 70640), (320, 67991), (352, 61810), (385, 56512), (440, 49448), (448, 48565), (560, 38852), (616, 35320), (704, 30905), (770, 28256), (880, 24724), (883, 24640), (1120, 19426), (1232, 17660), (1540, 14128), (1760, 12362), (1766, 12320), (2240, 9713), (2464, 8830), (3080, 7064), (3520, 6181), (3532, 6160), (4415, 4928)]