18156900105

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{647}}^1\times {\mathrm{20117}}^1$

素因数の和:20806

約数の個数: 48

約数和(自身を含む): 32539014144

約数和(自身を除く): 14382114039

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 647, 1395, 1941, 3235, 5823, 9705, 20057, 20117, 29115, 60171, 60351, 100285, 100585, 180513, 181053, 300855, 301755, 623627, 902565, 905265, 1870881, 3118135, 5612643, 9354405, 13015699, 28063215, 39047097, 65078495, 117141291, 195235485, 403486669, 585706455, 1210460007, 2017433345, 3631380021, 6052300035, 18156900105]

約数ペア:

[(1, 18156900105), (3, 6052300035), (5, 3631380021), (9, 2017433345), (15, 1210460007), (31, 585706455), (45, 403486669), (93, 195235485), (155, 117141291), (279, 65078495), (465, 39047097), (647, 28063215), (1395, 13015699), (1941, 9354405), (3235, 5612643), (5823, 3118135), (9705, 1870881), (20057, 905265), (20117, 902565), (29115, 623627), (60171, 301755), (60351, 300855), (100285, 181053), (100585, 180513)]