21056554547

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{22617137}}^1$

素因数の和:22617170

約数の個数: 12

約数和(自身を含む): 25783537320

約数和(自身を除く): 4726982773

約数列:

[1, 7, 19, 49, 133, 931, 22617137, 158319959, 429725603, 1108239713, 3008079221, 21056554547]

約数ペア:

[(1, 21056554547), (7, 3008079221), (19, 1108239713), (49, 429725603), (133, 158319959), (931, 22617137)]