19905438

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{473939}}^1$

素因数の和:473951

約数の個数: 16

約数和(自身を含む): 45498240

約数和(自身を除く): 25592802

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 473939, 947878, 1421817, 2843634, 3317573, 6635146, 9952719, 19905438]

約数ペア:

[(1, 19905438), (2, 9952719), (3, 6635146), (6, 3317573), (7, 2843634), (14, 1421817), (21, 947878), (42, 473939)]