19407101

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{809}}^1$

素因数の和:988

約数の個数: 16

約数和(自身を含む): 23328000

約数和(自身を除く): 3920899

約数列:

[1, 7, 23, 149, 161, 809, 1043, 3427, 5663, 18607, 23989, 120541, 130249, 843787, 2772443, 19407101]

約数ペア:

[(1, 19407101), (7, 2772443), (23, 843787), (149, 130249), (161, 120541), (809, 23989), (1043, 18607), (3427, 5663)]