21163167

素因数分解:

$3^3\times {\mathrm{139}}^1\times {\mathrm{5639}}^1$

素因数の和:5787

約数の個数: 16

約数和(自身を含む): 31584000

約数和(自身を除く): 10420833

約数列:

[1, 3, 9, 27, 139, 417, 1251, 3753, 5639, 16917, 50751, 152253, 783821, 2351463, 7054389, 21163167]

約数ペア:

[(1, 21163167), (3, 7054389), (9, 2351463), (27, 783821), (139, 152253), (417, 50751), (1251, 16917), (3753, 5639)]