18478521

素因数分解:

$3^2\times {\mathrm{139}}^1\times {\mathrm{14771}}^1$

素因数の和:14916

約数の個数: 12

約数和(自身を含む): 26885040

約数和(自身を除く): 8406519

約数列:

[1, 3, 9, 139, 417, 1251, 14771, 44313, 132939, 2053169, 6159507, 18478521]

約数ペア:

[(1, 18478521), (3, 6159507), (9, 2053169), (139, 132939), (417, 44313), (1251, 14771)]