18431996

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{418909}}^1$

素因数の和:418924

約数の個数: 12

約数和(自身を含む): 35188440

約数和(自身を除く): 16756444

約数列:

[1, 2, 4, 11, 22, 44, 418909, 837818, 1675636, 4607999, 9215998, 18431996]

約数ペア:

[(1, 18431996), (2, 9215998), (4, 4607999), (11, 1675636), (22, 837818), (44, 418909)]