19205907

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{21269}}^1$

素因数の和:21322

約数の個数: 16

約数和(自身を含む): 29948160

約数和(自身を除く): 10742253

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 21269, 63807, 148883, 446649, 914567, 2743701, 6401969, 19205907]

約数ペア:

[(1, 19205907), (3, 6401969), (7, 2743701), (21, 914567), (43, 446649), (129, 148883), (301, 63807), (903, 21269)]