21705706

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{257}}^1\times {\mathrm{349}}^1$

素因数の和:630

約数の個数: 24

約数和(自身を含む): 36029700

約数和(自身を除く): 14323994

約数列:

[1, 2, 11, 22, 121, 242, 257, 349, 514, 698, 2827, 3839, 5654, 7678, 31097, 42229, 62194, 84458, 89693, 179386, 986623, 1973246, 10852853, 21705706]

約数ペア:

[(1, 21705706), (2, 10852853), (11, 1973246), (22, 986623), (121, 179386), (242, 89693), (257, 84458), (349, 62194), (514, 42229), (698, 31097), (2827, 7678), (3839, 5654)]