18645809

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3359}}^1$

素因数の和:3440

約数の個数: 16

約数和(自身を含む): 23331840

約数和(自身を除く): 4686031

約数列:

[1, 7, 13, 61, 91, 427, 793, 3359, 5551, 23513, 43667, 204899, 305669, 1434293, 2663687, 18645809]

約数ペア:

[(1, 18645809), (7, 2663687), (13, 1434293), (61, 305669), (91, 204899), (427, 43667), (793, 23513), (3359, 5551)]