21841463

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{487}}^1$

素因数の和:686

約数の個数: 16

約数和(自身を含む): 25766400

約数和(自身を除く): 3924937

約数列:

[1, 7, 43, 149, 301, 487, 1043, 3409, 6407, 20941, 44849, 72563, 146587, 507941, 3120209, 21841463]

約数ペア:

[(1, 21841463), (7, 3120209), (43, 507941), (149, 146587), (301, 72563), (487, 44849), (1043, 20941), (3409, 6407)]