253287

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:124

約数の個数: 20

約数和(自身を含む): 392040

約数和(自身を除く): 138753

約数列:

[1, 3, 9, 27, 53, 59, 81, 159, 177, 477, 531, 1431, 1593, 3127, 4293, 4779, 9381, 28143, 84429, 253287]

約数ペア:

[(1, 253287), (3, 84429), (9, 28143), (27, 9381), (53, 4779), (59, 4293), (81, 3127), (159, 1593), (177, 1431), (477, 531)]