664694387

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{27953}}^1$

素因数の和:28082

約数の個数: 16

約数和(自身を含む): 787184640

約数和(自身を除く): 122490253

約数列:

[1, 7, 43, 79, 301, 553, 3397, 23779, 27953, 195671, 1201979, 2208287, 8413853, 15458009, 94956341, 664694387]

約数ペア:

[(1, 664694387), (7, 94956341), (43, 15458009), (79, 8413853), (301, 2208287), (553, 1201979), (3397, 195671), (23779, 27953)]