19910110

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181001}}^1$

素因数の和:181019

約数の個数: 16

約数和(自身を含む): 39096432

約数和(自身を除く): 19186322

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 181001, 362002, 905005, 1810010, 1991011, 3982022, 9955055, 19910110]

約数ペア:

[(1, 19910110), (2, 9955055), (5, 3982022), (10, 1991011), (11, 1810010), (22, 905005), (55, 362002), (110, 181001)]