203920983

素因数分解:

$3^6\times 7^1\times {\mathrm{89}}^1\times {\mathrm{449}}^1$

素因数の和:563

約数の個数: 56

約数和(自身を含む): 354132000

約数和(自身を除く): 150211017

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 89, 189, 243, 267, 449, 567, 623, 729, 801, 1347, 1701, 1869, 2403, 3143, 4041, 5103, 5607, 7209, 9429, 12123, 16821, 21627, 28287, 36369, 39961, 50463, 64881, 84861, 109107, 119883, 151389, 254583, 279727, 327321, 359649, 454167, 763749, 839181, 1078947, 2291247, 2517543, 3236841, 7552629, 9710523, 22657887, 29131569, 67973661, 203920983]

約数ペア:

[(1, 203920983), (3, 67973661), (7, 29131569), (9, 22657887), (21, 9710523), (27, 7552629), (63, 3236841), (81, 2517543), (89, 2291247), (189, 1078947), (243, 839181), (267, 763749), (449, 454167), (567, 359649), (623, 327321), (729, 279727), (801, 254583), (1347, 151389), (1701, 119883), (1869, 109107), (2403, 84861), (3143, 64881), (4041, 50463), (5103, 39961), (5607, 36369), (7209, 28287), (9429, 21627), (12123, 16821)]