21042912

素因数分解:

$2^5\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19927}}^1$

素因数の和:19951

約数の個数: 48

約数和(自身を含む): 60262272

約数和(自身を除く): 39219360

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 66, 88, 96, 132, 176, 264, 352, 528, 1056, 19927, 39854, 59781, 79708, 119562, 159416, 219197, 239124, 318832, 438394, 478248, 637664, 657591, 876788, 956496, 1315182, 1753576, 1912992, 2630364, 3507152, 5260728, 7014304, 10521456, 21042912]

約数ペア:

[(1, 21042912), (2, 10521456), (3, 7014304), (4, 5260728), (6, 3507152), (8, 2630364), (11, 1912992), (12, 1753576), (16, 1315182), (22, 956496), (24, 876788), (32, 657591), (33, 637664), (44, 478248), (48, 438394), (66, 318832), (88, 239124), (96, 219197), (132, 159416), (176, 119562), (264, 79708), (352, 59781), (528, 39854), (1056, 19927)]