20517796

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{1093}}^1$

素因数の和:1148

約数の個数: 36

約数和(自身を含む): 40847772

約数和(自身を除く): 20329976

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 361, 494, 722, 988, 1093, 1444, 2186, 4372, 4693, 9386, 14209, 18772, 20767, 28418, 41534, 56836, 83068, 269971, 394573, 539942, 789146, 1079884, 1578292, 5129449, 10258898, 20517796]

約数ペア:

[(1, 20517796), (2, 10258898), (4, 5129449), (13, 1578292), (19, 1079884), (26, 789146), (38, 539942), (52, 394573), (76, 269971), (247, 83068), (361, 56836), (494, 41534), (722, 28418), (988, 20767), (1093, 18772), (1444, 14209), (2186, 9386), (4372, 4693)]