42856989

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2903}}^1$

素因数の和:2969

約数の個数: 32

約数和(自身を含む): 70625280

約数和(自身を除く): 27768291

約数列:

[1, 3, 7, 19, 21, 37, 57, 111, 133, 259, 399, 703, 777, 2109, 2903, 4921, 8709, 14763, 20321, 55157, 60963, 107411, 165471, 322233, 386099, 751877, 1158297, 2040809, 2255631, 6122427, 14285663, 42856989]

約数ペア:

[(1, 42856989), (3, 14285663), (7, 6122427), (19, 2255631), (21, 2040809), (37, 1158297), (57, 751877), (111, 386099), (133, 322233), (259, 165471), (399, 107411), (703, 60963), (777, 55157), (2109, 20321), (2903, 14763), (4921, 8709)]