18959805

素因数分解:

$3^3\times 5^1\times {\mathrm{140443}}^1$

素因数の和:140457

約数の個数: 16

約数和(自身を含む): 33706560

約数和(自身を除く): 14746755

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 140443, 421329, 702215, 1263987, 2106645, 3791961, 6319935, 18959805]

約数ペア:

[(1, 18959805), (3, 6319935), (5, 3791961), (9, 2106645), (15, 1263987), (27, 702215), (45, 421329), (135, 140443)]