218490315

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{111191}}^1$

素因数の和:111330

約数の個数: 16

約数和(自身を含む): 352256256

約数和(自身を除く): 133765941

約数列:

[1, 3, 5, 15, 131, 393, 655, 1965, 111191, 333573, 555955, 1667865, 14566021, 43698063, 72830105, 218490315]

約数ペア:

[(1, 218490315), (3, 72830105), (5, 43698063), (15, 14566021), (131, 1667865), (393, 555955), (655, 333573), (1965, 111191)]