18889090

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{171719}}^1$

素因数の和:171737

約数の個数: 16

約数和(自身を含む): 37091520

約数和(自身を除く): 18202430

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 171719, 343438, 858595, 1717190, 1888909, 3777818, 9444545, 18889090]

約数ペア:

[(1, 18889090), (2, 9444545), (5, 3777818), (10, 1888909), (11, 1717190), (22, 858595), (55, 343438), (110, 171719)]