20813331

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{8191}}^1$

素因数の和:8223

約数の個数: 24

約数和(自身を含む): 34865152

約数和(自身を除く): 14051821

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 363, 847, 2541, 8191, 24573, 57337, 90101, 172011, 270303, 630707, 991111, 1892121, 2973333, 6937777, 20813331]

約数ペア:

[(1, 20813331), (3, 6937777), (7, 2973333), (11, 1892121), (21, 991111), (33, 630707), (77, 270303), (121, 172011), (231, 90101), (363, 57337), (847, 24573), (2541, 8191)]