21870609

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{2053}}^1$

素因数の和:2176

約数の個数: 16

約数和(自身を含む): 30169152

約数和(自身を除く): 8298543

約数列:

[1, 3, 53, 67, 159, 201, 2053, 3551, 6159, 10653, 108809, 137551, 326427, 412653, 7290203, 21870609]

約数ペア:

[(1, 21870609), (3, 7290203), (53, 412653), (67, 326427), (159, 137551), (201, 108809), (2053, 10653), (3551, 6159)]