18866943

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{5807}}^1$

素因数の和:5851

約数の個数: 18

約数和(自身を含む): 28767024

約数和(自身を除く): 9900081

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 5807, 17421, 52263, 110333, 330999, 992997, 2096327, 6288981, 18866943]

約数ペア:

[(1, 18866943), (3, 6288981), (9, 2096327), (19, 992997), (57, 330999), (171, 110333), (361, 52263), (1083, 17421), (3249, 5807)]