639353346

素因数分解:

$2^1\times 3^1\times {\mathrm{1237}}^1\times {\mathrm{86143}}^1$

素因数の和:87385

約数の個数: 16

約数和(自身を含む): 1279755264

約数和(自身を除く): 640401918

約数列:

[1, 2, 3, 6, 1237, 2474, 3711, 7422, 86143, 172286, 258429, 516858, 106558891, 213117782, 319676673, 639353346]

約数ペア:

[(1, 639353346), (2, 319676673), (3, 213117782), (6, 106558891), (1237, 516858), (2474, 258429), (3711, 172286), (7422, 86143)]