19472789

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1531}}^1$

素因数の和:1640

約数の個数: 16

約数和(自身を含む): 23531520

約数和(自身を除く): 4058731

約数列:

[1, 7, 23, 79, 161, 553, 1531, 1817, 10717, 12719, 35213, 120949, 246491, 846643, 2781827, 19472789]

約数ペア:

[(1, 19472789), (7, 2781827), (23, 846643), (79, 246491), (161, 120949), (553, 35213), (1531, 12719), (1817, 10717)]