18109465

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{809}}^1$

素因数の和:873

約数の個数: 24

約数和(自身を含む): 24562440

約数和(自身を除く): 6452975

約数列:

[1, 5, 11, 37, 55, 121, 185, 407, 605, 809, 2035, 4045, 4477, 8899, 22385, 29933, 44495, 97889, 149665, 329263, 489445, 1646315, 3621893, 18109465]

約数ペア:

[(1, 18109465), (5, 3621893), (11, 1646315), (37, 489445), (55, 329263), (121, 149665), (185, 97889), (407, 44495), (605, 29933), (809, 22385), (2035, 8899), (4045, 4477)]