255891962

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{354421}}^1$

素因数の和:354461

約数の個数: 12

約数和(自身を含む): 405104346

約数和(自身を除く): 149212384

約数列:

[1, 2, 19, 38, 361, 722, 354421, 708842, 6733999, 13467998, 127945981, 255891962]

約数ペア:

[(1, 255891962), (2, 127945981), (19, 13467998), (38, 6733999), (361, 708842), (722, 354421)]