251559962

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{348421}}^1$

素因数の和:348461

約数の個数: 12

約数和(自身を含む): 398246346

約数和(自身を除く): 146686384

約数列:

[1, 2, 19, 38, 361, 722, 348421, 696842, 6619999, 13239998, 125779981, 251559962]

約数ペア:

[(1, 251559962), (2, 125779981), (19, 13239998), (38, 6619999), (361, 696842), (722, 348421)]