19864663

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{9491}}^1$

素因数の和:9534

約数の個数: 16

約数和(自身を含む): 25514496

約数和(自身を除く): 5649833

約数列:

[1, 7, 13, 23, 91, 161, 299, 2093, 9491, 66437, 123383, 218293, 863681, 1528051, 2837809, 19864663]

約数ペア:

[(1, 19864663), (7, 2837809), (13, 1528051), (23, 863681), (91, 218293), (161, 123383), (299, 66437), (2093, 9491)]