17939901

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{19867}}^1$

素因数の和:19920

約数の個数: 16

約数和(自身を含む): 27974144

約数和(自身を除く): 10034243

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 19867, 59601, 139069, 417207, 854281, 2562843, 5979967, 17939901]

約数ペア:

[(1, 17939901), (3, 5979967), (7, 2562843), (21, 854281), (43, 417207), (129, 139069), (301, 59601), (903, 19867)]