21097118

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{65519}}^1$

素因数の和:65551

約数の個数: 16

約数和(自身を含む): 37739520

約数和(自身を除く): 16642402

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 65519, 131038, 458633, 917266, 1506937, 3013874, 10548559, 21097118]

約数ペア:

[(1, 21097118), (2, 10548559), (7, 3013874), (14, 1506937), (23, 917266), (46, 458633), (161, 131038), (322, 65519)]