21983297

素因数分解:

$7^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1\times {\mathrm{241}}^1$

素因数の和:488

約数の個数: 16

約数和(自身を含む): 25694592

約数和(自身を除く): 3711295

約数列:

[1, 7, 83, 157, 241, 581, 1099, 1687, 13031, 20003, 37837, 91217, 140021, 264859, 3140471, 21983297]

約数ペア:

[(1, 21983297), (7, 3140471), (83, 264859), (157, 140021), (241, 91217), (581, 37837), (1099, 20003), (1687, 13031)]