20806929

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{317}}^1$

素因数の和:367

約数の個数: 64

約数和(自身を含む): 38465280

約数和(自身を除く): 17658351

約数列:

[1, 3, 9, 11, 13, 17, 27, 33, 39, 51, 99, 117, 143, 153, 187, 221, 297, 317, 351, 429, 459, 561, 663, 951, 1287, 1683, 1989, 2431, 2853, 3487, 3861, 4121, 5049, 5389, 5967, 7293, 8559, 10461, 12363, 16167, 21879, 31383, 37089, 45331, 48501, 59279, 65637, 70057, 94149, 111267, 135993, 145503, 177837, 210171, 407979, 533511, 630513, 770627, 1223937, 1600533, 1891539, 2311881, 6935643, 20806929]

約数ペア:

[(1, 20806929), (3, 6935643), (9, 2311881), (11, 1891539), (13, 1600533), (17, 1223937), (27, 770627), (33, 630513), (39, 533511), (51, 407979), (99, 210171), (117, 177837), (143, 145503), (153, 135993), (187, 111267), (221, 94149), (297, 70057), (317, 65637), (351, 59279), (429, 48501), (459, 45331), (561, 37089), (663, 31383), (951, 21879), (1287, 16167), (1683, 12363), (1989, 10461), (2431, 8559), (2853, 7293), (3487, 5967), (3861, 5389), (4121, 5049)]