217436513

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{26801}}^1$

素因数の和:26888

約数の個数: 16

約数和(自身を含む): 265875840

約数和(自身を除く): 48439327

約数列:

[1, 7, 19, 61, 133, 427, 1159, 8113, 26801, 187607, 509219, 1634861, 3564533, 11444027, 31062359, 217436513]

約数ペア:

[(1, 217436513), (7, 31062359), (19, 11444027), (61, 3564533), (133, 1634861), (427, 509219), (1159, 187607), (8113, 26801)]