18973420

素因数分解:

$2^2\times 5^1\times {\mathrm{948671}}^1$

素因数の和:948680

約数の個数: 12

約数和(自身を含む): 39844224

約数和(自身を除く): 20870804

約数列:

[1, 2, 4, 5, 10, 20, 948671, 1897342, 3794684, 4743355, 9486710, 18973420]

約数ペア:

[(1, 18973420), (2, 9486710), (4, 4743355), (5, 3794684), (10, 1897342), (20, 948671)]