20929181

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{659}}^1$

素因数の和:1028

約数の個数: 16

約数和(自身を含む): 25872000

約数和(自身を除く): 4942819

約数列:

[1, 7, 13, 91, 349, 659, 2443, 4537, 4613, 8567, 31759, 59969, 229991, 1609937, 2989883, 20929181]

約数ペア:

[(1, 20929181), (7, 2989883), (13, 1609937), (91, 229991), (349, 59969), (659, 31759), (2443, 8567), (4537, 4613)]