28654983

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{647}}^1$

素因数の和:716

約数の個数: 48

約数和(自身を含む): 51217920

約数和(自身を除く): 22562937

約数列:

[1, 3, 7, 9, 19, 21, 37, 57, 63, 111, 133, 171, 259, 333, 399, 647, 703, 777, 1197, 1941, 2109, 2331, 4529, 4921, 5823, 6327, 12293, 13587, 14763, 23939, 36879, 40761, 44289, 71817, 86051, 110637, 167573, 215451, 258153, 454841, 502719, 774459, 1364523, 1508157, 3183887, 4093569, 9551661, 28654983]

約数ペア:

[(1, 28654983), (3, 9551661), (7, 4093569), (9, 3183887), (19, 1508157), (21, 1364523), (37, 774459), (57, 502719), (63, 454841), (111, 258153), (133, 215451), (171, 167573), (259, 110637), (333, 86051), (399, 71817), (647, 44289), (703, 40761), (777, 36879), (1197, 23939), (1941, 14763), (2109, 13587), (2331, 12293), (4529, 6327), (4921, 5823)]