27991095

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{587}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 51988608

約数和(自身を除く): 23997513

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 187, 255, 289, 561, 587, 867, 935, 1445, 1761, 2805, 2935, 3179, 4335, 6457, 8805, 9537, 9979, 15895, 19371, 29937, 32285, 47685, 49895, 96855, 109769, 149685, 169643, 329307, 508929, 548845, 848215, 1646535, 1866073, 2544645, 5598219, 9330365, 27991095]

約数ペア:

[(1, 27991095), (3, 9330365), (5, 5598219), (11, 2544645), (15, 1866073), (17, 1646535), (33, 848215), (51, 548845), (55, 508929), (85, 329307), (165, 169643), (187, 149685), (255, 109769), (289, 96855), (561, 49895), (587, 47685), (867, 32285), (935, 29937), (1445, 19371), (1761, 15895), (2805, 9979), (2935, 9537), (3179, 8805), (4335, 6457)]