18981438

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{451939}}^1$

素因数の和:451951

約数の個数: 16

約数和(自身を含む): 43386240

約数和(自身を除く): 24404802

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 451939, 903878, 1355817, 2711634, 3163573, 6327146, 9490719, 18981438]

約数ペア:

[(1, 18981438), (2, 9490719), (3, 6327146), (6, 3163573), (7, 2711634), (14, 1355817), (21, 903878), (42, 451939)]