18995655189

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{21036163}}^1$

素因数の和:21036216

約数の個数: 16

約数和(自身を含む): 29618918912

約数和(自身を除く): 10623263723

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 21036163, 63108489, 147253141, 441759423, 904555009, 2713665027, 6331885063, 18995655189]

約数ペア:

[(1, 18995655189), (3, 6331885063), (7, 2713665027), (21, 904555009), (43, 441759423), (129, 147253141), (301, 63108489), (903, 21036163)]