21480951

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{1871}}^1$

素因数の和:2006

約数の個数: 16

約数和(自身を含む): 29652480

約数和(自身を除く): 8171529

約数列:

[1, 3, 43, 89, 129, 267, 1871, 3827, 5613, 11481, 80453, 166519, 241359, 499557, 7160317, 21480951]

約数ペア:

[(1, 21480951), (3, 7160317), (43, 499557), (89, 241359), (129, 166519), (267, 80453), (1871, 11481), (3827, 5613)]