19185265

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^3\times {\mathrm{71}}^1$

素因数の和:138

約数の個数: 32

約数和(自身を含む): 27060480

約数和(自身を除く): 7875215

約数列:

[1, 5, 11, 17, 55, 71, 85, 187, 289, 355, 781, 935, 1207, 1445, 3179, 3905, 4913, 6035, 13277, 15895, 20519, 24565, 54043, 66385, 102595, 225709, 270215, 348823, 1128545, 1744115, 3837053, 19185265]

約数ペア:

[(1, 19185265), (5, 3837053), (11, 1744115), (17, 1128545), (55, 348823), (71, 270215), (85, 225709), (187, 102595), (289, 66385), (355, 54043), (781, 24565), (935, 20519), (1207, 15895), (1445, 13277), (3179, 6035), (3905, 4913)]