21159054

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{307}}^1\times {\mathrm{547}}^1$

素因数の和:869

約数の個数: 48

約数和(自身を含む): 52660608

約数和(自身を除く): 31501554

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 307, 547, 614, 921, 1094, 1641, 1842, 2149, 2763, 3282, 3829, 4298, 4923, 5526, 6447, 7658, 9846, 11487, 12894, 19341, 22974, 34461, 38682, 68922, 167929, 335858, 503787, 1007574, 1175503, 1511361, 2351006, 3022722, 3526509, 7053018, 10579527, 21159054]

約数ペア:

[(1, 21159054), (2, 10579527), (3, 7053018), (6, 3526509), (7, 3022722), (9, 2351006), (14, 1511361), (18, 1175503), (21, 1007574), (42, 503787), (63, 335858), (126, 167929), (307, 68922), (547, 38682), (614, 34461), (921, 22974), (1094, 19341), (1641, 12894), (1842, 11487), (2149, 9846), (2763, 7658), (3282, 6447), (3829, 5526), (4298, 4923)]