20378811

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{607}}^1$

素因数の和:679

約数の個数: 24

約数和(自身を含む): 29650944

約数和(自身を除く): 9272133

約数列:

[1, 3, 19, 31, 57, 93, 361, 589, 607, 1083, 1767, 1821, 11191, 11533, 18817, 33573, 34599, 56451, 219127, 357523, 657381, 1072569, 6792937, 20378811]

約数ペア:

[(1, 20378811), (3, 6792937), (19, 1072569), (31, 657381), (57, 357523), (93, 219127), (361, 56451), (589, 34599), (607, 33573), (1083, 18817), (1767, 11533), (1821, 11191)]