18812391

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{13037}}^1$

素因数の和:13090

約数の個数: 16

約数和(自身を含む): 27744864

約数和(自身を除く): 8932473

約数列:

[1, 3, 13, 37, 39, 111, 481, 1443, 13037, 39111, 169481, 482369, 508443, 1447107, 6270797, 18812391]

約数ペア:

[(1, 18812391), (3, 6270797), (13, 1447107), (37, 508443), (39, 482369), (111, 169481), (481, 39111), (1443, 13037)]