209216049

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{524351}}^1$

素因数の和:524380

約数の個数: 16

約数和(自身を含む): 335585280

約数和(自身を除く): 126369231

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 524351, 1573053, 3670457, 9962669, 11011371, 29888007, 69738683, 209216049]

約数ペア:

[(1, 209216049), (3, 69738683), (7, 29888007), (19, 11011371), (21, 9962669), (57, 3670457), (133, 1573053), (399, 524351)]