20218605

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{677}}^1$

素因数の和:877

約数の個数: 32

約数和(自身を含む): 35538048

約数和(自身を除く): 15319443

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 181, 543, 677, 905, 1991, 2031, 2715, 3385, 5973, 7447, 9955, 10155, 22341, 29865, 37235, 111705, 122537, 367611, 612685, 1347907, 1838055, 4043721, 6739535, 20218605]

約数ペア:

[(1, 20218605), (3, 6739535), (5, 4043721), (11, 1838055), (15, 1347907), (33, 612685), (55, 367611), (165, 122537), (181, 111705), (543, 37235), (677, 29865), (905, 22341), (1991, 10155), (2031, 9955), (2715, 7447), (3385, 5973)]