9988191.00000000

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{15497}}^1$

素因数の和:15546

約数の個数: 16

約数和(自身を含む): 59512320

約数和(自身を除く): 12106997

約数列:

[1, 7, 19, 23, 133, 161, 437, 3059, 15497, 108479, 294443, 356431, 2061101, 2495017, 6772189, 47405323]

約数ペア:

[(1, 47405323), (7, 6772189), (19, 2495017), (23, 2061101), (133, 356431), (161, 294443), (437, 108479), (3059, 15497)]