19966572

素因数分解:

$2^2\times 3^2\times {\mathrm{554627}}^1$

素因数の和:554637

約数の個数: 18

約数和(自身を含む): 50471148

約数和(自身を除く): 30504576

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 554627, 1109254, 1663881, 2218508, 3327762, 4991643, 6655524, 9983286, 19966572]

約数ペア:

[(1, 19966572), (2, 9983286), (3, 6655524), (4, 4991643), (6, 3327762), (9, 2218508), (12, 1663881), (18, 1109254), (36, 554627)]