18409235

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{3989}}^1$

素因数の和:4078

約数の個数: 16

約数和(自身を含む): 24131520

約数和(自身を除く): 5722285

約数列:

[1, 5, 13, 65, 71, 355, 923, 3989, 4615, 19945, 51857, 259285, 283219, 1416095, 3681847, 18409235]

約数ペア:

[(1, 18409235), (5, 3681847), (13, 1416095), (65, 283219), (71, 259285), (355, 51857), (923, 19945), (3989, 4615)]