20178775851

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{164831}}^1$

素因数の和:164963

約数の個数: 32

約数和(自身を含む): 30054807552

約数和(自身を除く): 9876031701

約数列:

[1, 3, 13, 39, 43, 73, 129, 219, 559, 949, 1677, 2847, 3139, 9417, 40807, 122421, 164831, 494493, 2142803, 6428409, 7087733, 12032663, 21263199, 36097989, 92140529, 156424619, 276421587, 469273857, 517404509, 1552213527, 6726258617, 20178775851]

約数ペア:

[(1, 20178775851), (3, 6726258617), (13, 1552213527), (39, 517404509), (43, 469273857), (73, 276421587), (129, 156424619), (219, 92140529), (559, 36097989), (949, 21263199), (1677, 12032663), (2847, 7087733), (3139, 6428409), (9417, 2142803), (40807, 494493), (122421, 164831)]