21337085

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{353}}^1$

素因数の和:533

約数の個数: 32

約数和(自身を含む): 32216832

約数和(自身を除く): 10879747

約数列:

[1, 5, 7, 11, 35, 55, 77, 157, 353, 385, 785, 1099, 1727, 1765, 2471, 3883, 5495, 8635, 12089, 12355, 19415, 27181, 55421, 60445, 135905, 277105, 387947, 609631, 1939735, 3048155, 4267417, 21337085]

約数ペア:

[(1, 21337085), (5, 4267417), (7, 3048155), (11, 1939735), (35, 609631), (55, 387947), (77, 277105), (157, 135905), (353, 60445), (385, 55421), (785, 27181), (1099, 19415), (1727, 12355), (1765, 12089), (2471, 8635), (3883, 5495)]