21717956

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{1733}}^1$

素因数の和:1991

約数の個数: 24

約数和(自身を含む): 41123544

約数和(自身を除く): 19405588

約数列:

[1, 2, 4, 13, 26, 52, 241, 482, 964, 1733, 3133, 3466, 6266, 6932, 12532, 22529, 45058, 90116, 417653, 835306, 1670612, 5429489, 10858978, 21717956]

約数ペア:

[(1, 21717956), (2, 10858978), (4, 5429489), (13, 1670612), (26, 835306), (52, 417653), (241, 90116), (482, 45058), (964, 22529), (1733, 12532), (3133, 6932), (3466, 6266)]