18874518

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{241981}}^1$

素因数の和:241999

約数の個数: 16

約数和(自身を含む): 40652976

約数和(自身を除く): 21778458

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 241981, 483962, 725943, 1451886, 3145753, 6291506, 9437259, 18874518]

約数ペア:

[(1, 18874518), (2, 9437259), (3, 6291506), (6, 3145753), (13, 1451886), (26, 725943), (39, 483962), (78, 241981)]