20765087

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{463}}^1$

素因数の和:662

約数の個数: 16

約数和(自身を含む): 24499200

約数和(自身を除く): 3734113

約数列:

[1, 7, 43, 149, 301, 463, 1043, 3241, 6407, 19909, 44849, 68987, 139363, 482909, 2966441, 20765087]

約数ペア:

[(1, 20765087), (7, 2966441), (43, 482909), (149, 139363), (301, 68987), (463, 44849), (1043, 19909), (3241, 6407)]