18938810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{172171}}^1$

素因数の和:172189

約数の個数: 16

約数和(自身を含む): 37189152

約数和(自身を除く): 18250342

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 172171, 344342, 860855, 1721710, 1893881, 3787762, 9469405, 18938810]

約数ペア:

[(1, 18938810), (2, 9469405), (5, 3787762), (10, 1893881), (11, 1721710), (22, 860855), (55, 344342), (110, 172171)]