212219901

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{637297}}^1$

素因数の和:637340

約数の個数: 12

約数和(自身を含む): 314825212

約数和(自身を除く): 102605311

約数列:

[1, 3, 9, 37, 111, 333, 637297, 1911891, 5735673, 23579989, 70739967, 212219901]

約数ペア:

[(1, 212219901), (3, 70739967), (9, 23579989), (37, 5735673), (111, 1911891), (333, 637297)]