19947055

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:343

約数の個数: 24

約数和(自身を含む): 25950672

約数和(自身を除く): 6003617

約数列:

[1, 5, 19, 43, 95, 215, 257, 361, 817, 1285, 1805, 4085, 4883, 11051, 15523, 24415, 55255, 77615, 92777, 209969, 463885, 1049845, 3989411, 19947055]

約数ペア:

[(1, 19947055), (5, 3989411), (19, 1049845), (43, 463885), (95, 209969), (215, 92777), (257, 77615), (361, 55255), (817, 24415), (1285, 15523), (1805, 11051), (4085, 4883)]