18681656

素因数分解:

$2^3\times 7^1\times {\mathrm{271}}^1\times {\mathrm{1231}}^1$

素因数の和:1515

約数の個数: 32

約数和(自身を含む): 40212480

約数和(自身を除く): 21530824

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 271, 542, 1084, 1231, 1897, 2168, 2462, 3794, 4924, 7588, 8617, 9848, 15176, 17234, 34468, 68936, 333601, 667202, 1334404, 2335207, 2668808, 4670414, 9340828, 18681656]

約数ペア:

[(1, 18681656), (2, 9340828), (4, 4670414), (7, 2668808), (8, 2335207), (14, 1334404), (28, 667202), (56, 333601), (271, 68936), (542, 34468), (1084, 17234), (1231, 15176), (1897, 9848), (2168, 8617), (2462, 7588), (3794, 4924)]