19316331

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:176

約数の個数: 48

約数和(自身を含む): 31299840

約数和(自身を除く): 11983509

約数列:

[1, 3, 9, 19, 37, 43, 57, 71, 111, 129, 171, 213, 333, 387, 639, 703, 817, 1349, 1591, 2109, 2451, 2627, 3053, 4047, 4773, 6327, 7353, 7881, 9159, 12141, 14319, 23643, 27477, 30229, 49913, 58007, 90687, 112961, 149739, 174021, 272061, 338883, 449217, 522063, 1016649, 2146259, 6438777, 19316331]

約数ペア:

[(1, 19316331), (3, 6438777), (9, 2146259), (19, 1016649), (37, 522063), (43, 449217), (57, 338883), (71, 272061), (111, 174021), (129, 149739), (171, 112961), (213, 90687), (333, 58007), (387, 49913), (639, 30229), (703, 27477), (817, 23643), (1349, 14319), (1591, 12141), (2109, 9159), (2451, 7881), (2627, 7353), (3053, 6327), (4047, 4773)]