20529905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{12041}}^1$

素因数の和:12088

約数の個数: 16

約数和(自身を含む): 27744768

約数和(自身を除く): 7214863

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 12041, 60205, 132451, 373271, 662255, 1866355, 4105981, 20529905]

約数ペア:

[(1, 20529905), (5, 4105981), (11, 1866355), (31, 662255), (55, 373271), (155, 132451), (341, 60205), (1705, 12041)]