20145276

素因数分解:

$2^2\times 3^2\times {\mathrm{559591}}^1$

素因数の和:559601

約数の個数: 18

約数和(自身を含む): 50922872

約数和(自身を除く): 30777596

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 559591, 1119182, 1678773, 2238364, 3357546, 5036319, 6715092, 10072638, 20145276]

約数ペア:

[(1, 20145276), (2, 10072638), (3, 6715092), (4, 5036319), (6, 3357546), (9, 2238364), (12, 1678773), (18, 1119182), (36, 559591)]