18889335

素因数分解:

$3^3\times 5^1\times {\mathrm{139921}}^1$

素因数の和:139935

約数の個数: 16

約数和(自身を含む): 33581280

約数和(自身を除く): 14691945

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 139921, 419763, 699605, 1259289, 2098815, 3777867, 6296445, 18889335]

約数ペア:

[(1, 18889335), (3, 6296445), (5, 3777867), (9, 2098815), (15, 1259289), (27, 699605), (45, 419763), (135, 139921)]