18718594

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1\times {\mathrm{857}}^1$

素因数の和:1089

約数の個数: 16

約数和(自身を含む): 28705248

約数和(自身を除く): 9986654

約数列:

[1, 2, 67, 134, 163, 326, 857, 1714, 10921, 21842, 57419, 114838, 139691, 279382, 9359297, 18718594]

約数ペア:

[(1, 18718594), (2, 9359297), (67, 279382), (134, 139691), (163, 114838), (326, 57419), (857, 21842), (1714, 10921)]