19868107

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{443}}^1$

素因数の和:642

約数の個数: 16

約数和(自身を含む): 23443200

約数和(自身を除く): 3575093

約数列:

[1, 7, 43, 149, 301, 443, 1043, 3101, 6407, 19049, 44849, 66007, 133343, 462049, 2838301, 19868107]

約数ペア:

[(1, 19868107), (7, 2838301), (43, 462049), (149, 133343), (301, 66007), (443, 44849), (1043, 19049), (3101, 6407)]