21509824

素因数分解:

$2^6\times 7^2\times {\mathrm{19}}^3$

素因数の和:83

約数の個数: 84

約数和(自身を含む): 52410360

約数和(自身を除く): 30900536

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 49, 56, 64, 76, 98, 112, 133, 152, 196, 224, 266, 304, 361, 392, 448, 532, 608, 722, 784, 931, 1064, 1216, 1444, 1568, 1862, 2128, 2527, 2888, 3136, 3724, 4256, 5054, 5776, 6859, 7448, 8512, 10108, 11552, 13718, 14896, 17689, 20216, 23104, 27436, 29792, 35378, 40432, 48013, 54872, 59584, 70756, 80864, 96026, 109744, 141512, 161728, 192052, 219488, 283024, 336091, 384104, 438976, 566048, 672182, 768208, 1132096, 1344364, 1536416, 2688728, 3072832, 5377456, 10754912, 21509824]

約数ペア:

[(1, 21509824), (2, 10754912), (4, 5377456), (7, 3072832), (8, 2688728), (14, 1536416), (16, 1344364), (19, 1132096), (28, 768208), (32, 672182), (38, 566048), (49, 438976), (56, 384104), (64, 336091), (76, 283024), (98, 219488), (112, 192052), (133, 161728), (152, 141512), (196, 109744), (224, 96026), (266, 80864), (304, 70756), (361, 59584), (392, 54872), (448, 48013), (532, 40432), (608, 35378), (722, 29792), (784, 27436), (931, 23104), (1064, 20216), (1216, 17689), (1444, 14896), (1568, 13718), (1862, 11552), (2128, 10108), (2527, 8512), (2888, 7448), (3136, 6859), (3724, 5776), (4256, 5054)]