18123215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{433}}^1\times {\mathrm{761}}^1$

素因数の和:1210

約数の個数: 16

約数和(自身を含む): 23810976

約数和(自身を除く): 5687761

約数列:

[1, 5, 11, 55, 433, 761, 2165, 3805, 4763, 8371, 23815, 41855, 329513, 1647565, 3624643, 18123215]

約数ペア:

[(1, 18123215), (5, 3624643), (11, 1647565), (55, 329513), (433, 41855), (761, 23815), (2165, 8371), (3805, 4763)]