21116516

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{1609}}^1$

素因数の和:1823

約数の個数: 24

約数和(自身を含む): 39354840

約数和(自身を除く): 18238324

約数列:

[1, 2, 4, 17, 34, 68, 193, 386, 772, 1609, 3218, 3281, 6436, 6562, 13124, 27353, 54706, 109412, 310537, 621074, 1242148, 5279129, 10558258, 21116516]

約数ペア:

[(1, 21116516), (2, 10558258), (4, 5279129), (17, 1242148), (34, 621074), (68, 310537), (193, 109412), (386, 54706), (772, 27353), (1609, 13124), (3218, 6562), (3281, 6436)]