18640155

素因数分解:

$3^1\times 5^1\times {\mathrm{541}}^1\times {\mathrm{2297}}^1$

素因数の和:2846

約数の個数: 16

約数和(自身を含む): 29892384

約数和(自身を除く): 11252229

約数列:

[1, 3, 5, 15, 541, 1623, 2297, 2705, 6891, 8115, 11485, 34455, 1242677, 3728031, 6213385, 18640155]

約数ペア:

[(1, 18640155), (3, 6213385), (5, 3728031), (15, 1242677), (541, 34455), (1623, 11485), (2297, 8115), (2705, 6891)]