221208310

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{311561}}^1$

素因数の和:311639

約数の個数: 16

約数和(自身を含む): 403784352

約数和(自身を除く): 182576042

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 311561, 623122, 1557805, 3115610, 22120831, 44241662, 110604155, 221208310]

約数ペア:

[(1, 221208310), (2, 110604155), (5, 44241662), (10, 22120831), (71, 3115610), (142, 1557805), (355, 623122), (710, 311561)]