18486874

素因数分解:

$2^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{6703}}^1$

素因数の和:6909

約数の個数: 16

約数和(自身を含む): 31857408

約数和(自身を除く): 13370534

約数列:

[1, 2, 7, 14, 197, 394, 1379, 2758, 6703, 13406, 46921, 93842, 1320491, 2640982, 9243437, 18486874]

約数ペア:

[(1, 18486874), (2, 9243437), (7, 2640982), (14, 1320491), (197, 93842), (394, 46921), (1379, 13406), (2758, 6703)]