17820414

素因数分解:

$2^1\times 3^2\times {\mathrm{990023}}^1$

素因数の和:990031

約数の個数: 12

約数和(自身を含む): 38610936

約数和(自身を除く): 20790522

約数列:

[1, 2, 3, 6, 9, 18, 990023, 1980046, 2970069, 5940138, 8910207, 17820414]

約数ペア:

[(1, 17820414), (2, 8910207), (3, 5940138), (6, 2970069), (9, 1980046), (18, 990023)]