18723964

素因数分解:

$2^2\times 7^1\times {\mathrm{668713}}^1$

素因数の和:668724

約数の個数: 12

約数和(自身を含む): 37447984

約数和(自身を除く): 18724020

約数列:

[1, 2, 4, 7, 14, 28, 668713, 1337426, 2674852, 4680991, 9361982, 18723964]

約数ペア:

[(1, 18723964), (2, 9361982), (4, 4680991), (7, 2674852), (14, 1337426), (28, 668713)]