19989235198

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1\times {\mathrm{668939}}^1$

素因数の和:669231

約数の個数: 16

約数和(自身を含む): 30567882240

約数和(自身を除く): 10578647042

約数列:

[1, 2, 67, 134, 223, 446, 14941, 29882, 668939, 1337878, 44818913, 89637826, 149173397, 298346794, 9994617599, 19989235198]

約数ペア:

[(1, 19989235198), (2, 9994617599), (67, 298346794), (134, 149173397), (223, 89637826), (446, 44818913), (14941, 1337878), (29882, 668939)]