20394913

素因数分解:

$7^1\times {\mathrm{11}}^4\times {\mathrm{199}}^1$

素因数の和:250

約数の個数: 20

約数和(自身を含む): 25768000

約数和(自身を除く): 5373087

約数列:

[1, 7, 11, 77, 121, 199, 847, 1331, 1393, 2189, 9317, 14641, 15323, 24079, 102487, 168553, 264869, 1854083, 2913559, 20394913]

約数ペア:

[(1, 20394913), (7, 2913559), (11, 1854083), (77, 264869), (121, 168553), (199, 102487), (847, 24079), (1331, 15323), (1393, 14641), (2189, 9317)]