12820493

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{223}}^1$

素因数の和:464

約数の個数: 16

約数和(自身を含む): 15138816

約数和(自身を除く): 2318323

約数列:

[1, 7, 43, 191, 223, 301, 1337, 1561, 8213, 9589, 42593, 57491, 67123, 298151, 1831499, 12820493]

約数ペア:

[(1, 12820493), (7, 1831499), (43, 298151), (191, 67123), (223, 57491), (301, 42593), (1337, 9589), (1561, 8213)]