21264320

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{863}}^1$

素因数の和:898

約数の個数: 112

約数和(自身を含む): 63203328

約数和(自身を除く): 41939008

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, 863, 880, 1120, 1232, 1540, 1726, 1760, 2240, 2464, 3080, 3452, 3520, 4315, 4928, 6041, 6160, 6904, 8630, 9493, 12082, 12320, 13808, 17260, 18986, 24164, 24640, 27616, 30205, 34520, 37972, 47465, 48328, 55232, 60410, 66451, 69040, 75944, 94930, 96656, 120820, 132902, 138080, 151888, 189860, 193312, 241640, 265804, 276160, 303776, 332255, 379720, 386624, 483280, 531608, 607552, 664510, 759440, 966560, 1063216, 1329020, 1518880, 1933120, 2126432, 2658040, 3037760, 4252864, 5316080, 10632160, 21264320]

約数ペア:

[(1, 21264320), (2, 10632160), (4, 5316080), (5, 4252864), (7, 3037760), (8, 2658040), (10, 2126432), (11, 1933120), (14, 1518880), (16, 1329020), (20, 1063216), (22, 966560), (28, 759440), (32, 664510), (35, 607552), (40, 531608), (44, 483280), (55, 386624), (56, 379720), (64, 332255), (70, 303776), (77, 276160), (80, 265804), (88, 241640), (110, 193312), (112, 189860), (140, 151888), (154, 138080), (160, 132902), (176, 120820), (220, 96656), (224, 94930), (280, 75944), (308, 69040), (320, 66451), (352, 60410), (385, 55232), (440, 48328), (448, 47465), (560, 37972), (616, 34520), (704, 30205), (770, 27616), (863, 24640), (880, 24164), (1120, 18986), (1232, 17260), (1540, 13808), (1726, 12320), (1760, 12082), (2240, 9493), (2464, 8630), (3080, 6904), (3452, 6160), (3520, 6041), (4315, 4928)]