18679696

素因数分解:

$2^4\times 7^1\times {\mathrm{166783}}^1$

素因数の和:166798

約数の個数: 20

約数和(自身を含む): 41362432

約数和(自身を除く): 22682736

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 166783, 333566, 667132, 1167481, 1334264, 2334962, 2668528, 4669924, 9339848, 18679696]

約数ペア:

[(1, 18679696), (2, 9339848), (4, 4669924), (7, 2668528), (8, 2334962), (14, 1334264), (16, 1167481), (28, 667132), (56, 333566), (112, 166783)]