18974385

素因数分解:

$3^3\times 5^1\times {\mathrm{140551}}^1$

素因数の和:140565

約数の個数: 16

約数和(自身を含む): 33732480

約数和(自身を除く): 14758095

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 140551, 421653, 702755, 1264959, 2108265, 3794877, 6324795, 18974385]

約数ペア:

[(1, 18974385), (3, 6324795), (5, 3794877), (9, 2108265), (15, 1264959), (27, 702755), (45, 421653), (135, 140551)]