1800009

素因数分解:

$3^3\times {\mathrm{163}}^1\times {\mathrm{409}}^1$

素因数の和:581

約数の個数: 16

約数和(自身を含む): 2689600

約数和(自身を除く): 889591

約数列:

[1, 3, 9, 27, 163, 409, 489, 1227, 1467, 3681, 4401, 11043, 66667, 200001, 600003, 1800009]

約数ペア:

[(1, 1800009), (3, 600003), (9, 200001), (27, 66667), (163, 11043), (409, 4401), (489, 3681), (1227, 1467)]