21313317

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1\times {\mathrm{719}}^1$

素因数の和:1004

約数の個数: 16

約数和(自身を含む): 29272320

約数和(自身を除く): 7959003

約数列:

[1, 3, 41, 123, 241, 719, 723, 2157, 9881, 29479, 29643, 88437, 173279, 519837, 7104439, 21313317]

約数ペア:

[(1, 21313317), (3, 7104439), (41, 519837), (123, 173279), (241, 88437), (719, 29643), (723, 29479), (2157, 9881)]