18640744

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{21377}}^1$

素因数の和:21492

約数の個数: 16

約数和(自身を含む): 35273700

約数和(自身を除く): 16632956

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 21377, 42754, 85508, 171016, 2330093, 4660186, 9320372, 18640744]

約数ペア:

[(1, 18640744), (2, 9320372), (4, 4660186), (8, 2330093), (109, 171016), (218, 85508), (436, 42754), (872, 21377)]