21335867

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{4373}}^1$

素因数の和:4438

約数の個数: 16

約数和(自身を含む): 26453952

約数和(自身を除く): 5118085

約数列:

[1, 7, 17, 41, 119, 287, 697, 4373, 4879, 30611, 74341, 179293, 520387, 1255051, 3047981, 21335867]

約数ペア:

[(1, 21335867), (7, 3047981), (17, 1255051), (41, 520387), (119, 179293), (287, 74341), (697, 30611), (4373, 4879)]