81489405

素因数分解:

$3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{33329}}^1$

素因数の和:33500

約数の個数: 16

約数和(自身を含む): 131186880

約数和(自身を除く): 49697475

約数列:

[1, 3, 5, 15, 163, 489, 815, 2445, 33329, 99987, 166645, 499935, 5432627, 16297881, 27163135, 81489405]

約数ペア:

[(1, 81489405), (3, 27163135), (5, 16297881), (15, 5432627), (163, 499935), (489, 166645), (815, 99987), (2445, 33329)]