21142041

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{5081}}^1$

素因数の和:5176

約数の個数: 16

約数和(自身を含む): 30085440

約数和(自身を除く): 8943399

約数列:

[1, 3, 19, 57, 73, 219, 1387, 4161, 5081, 15243, 96539, 289617, 370913, 1112739, 7047347, 21142041]

約数ペア:

[(1, 21142041), (3, 7047347), (19, 1112739), (57, 370913), (73, 289617), (219, 96539), (1387, 15243), (4161, 5081)]