2161311

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:286

約数の個数: 16

約数和(自身を含む): 2983680

約数和(自身を除く): 822369

約数列:

[1, 3, 71, 73, 139, 213, 219, 417, 5183, 9869, 10147, 15549, 29607, 30441, 720437, 2161311]

約数ペア:

[(1, 2161311), (3, 720437), (71, 30441), (73, 29607), (139, 15549), (213, 10147), (219, 9869), (417, 5183)]