19803285

素因数分解:

$3^7\times 5^1\times {\mathrm{1811}}^1$

素因数の和:1837

約数の個数: 32

約数和(自身を含む): 35660160

約数和(自身を除く): 15856875

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 1811, 2187, 3645, 5433, 9055, 10935, 16299, 27165, 48897, 81495, 146691, 244485, 440073, 733455, 1320219, 2200365, 3960657, 6601095, 19803285]

約数ペア:

[(1, 19803285), (3, 6601095), (5, 3960657), (9, 2200365), (15, 1320219), (27, 733455), (45, 440073), (81, 244485), (135, 146691), (243, 81495), (405, 48897), (729, 27165), (1215, 16299), (1811, 10935), (2187, 9055), (3645, 5433)]