21993244

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:155

約数の個数: 96

約数和(自身を含む): 51480576

約数和(自身を除く): 29487332

約数列:

[1, 2, 4, 7, 13, 14, 23, 26, 28, 37, 46, 52, 71, 74, 91, 92, 142, 148, 161, 182, 259, 284, 299, 322, 364, 481, 497, 518, 598, 644, 851, 923, 962, 994, 1036, 1196, 1633, 1702, 1846, 1924, 1988, 2093, 2627, 3266, 3367, 3404, 3692, 4186, 5254, 5957, 6461, 6532, 6734, 8372, 10508, 11063, 11431, 11914, 12922, 13468, 18389, 21229, 22126, 22862, 23828, 25844, 34151, 36778, 42458, 44252, 45724, 60421, 68302, 73556, 77441, 84916, 120842, 136604, 148603, 154882, 239057, 241684, 297206, 309764, 422947, 478114, 594412, 785473, 845894, 956228, 1570946, 1691788, 3141892, 5498311, 10996622, 21993244]

約数ペア:

[(1, 21993244), (2, 10996622), (4, 5498311), (7, 3141892), (13, 1691788), (14, 1570946), (23, 956228), (26, 845894), (28, 785473), (37, 594412), (46, 478114), (52, 422947), (71, 309764), (74, 297206), (91, 241684), (92, 239057), (142, 154882), (148, 148603), (161, 136604), (182, 120842), (259, 84916), (284, 77441), (299, 73556), (322, 68302), (364, 60421), (481, 45724), (497, 44252), (518, 42458), (598, 36778), (644, 34151), (851, 25844), (923, 23828), (962, 22862), (994, 22126), (1036, 21229), (1196, 18389), (1633, 13468), (1702, 12922), (1846, 11914), (1924, 11431), (1988, 11063), (2093, 10508), (2627, 8372), (3266, 6734), (3367, 6532), (3404, 6461), (3692, 5957), (4186, 5254)]