19098398

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{78919}}^1$

素因数の和:78943

約数の個数: 12

約数和(自身を含む): 31489080

約数和(自身を除く): 12390682

約数列:

[1, 2, 11, 22, 121, 242, 78919, 157838, 868109, 1736218, 9549199, 19098398]

約数ペア:

[(1, 19098398), (2, 9549199), (11, 1736218), (22, 868109), (121, 157838), (242, 78919)]