21912443

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{419}}^1$

素因数の和:698

約数の個数: 16

約数和(自身を含む): 26019840

約数和(自身を除く): 4107397

約数列:

[1, 7, 31, 217, 241, 419, 1687, 2933, 7471, 12989, 52297, 90923, 100979, 706853, 3130349, 21912443]

約数ペア:

[(1, 21912443), (7, 3130349), (31, 706853), (217, 100979), (241, 90923), (419, 52297), (1687, 12989), (2933, 7471)]