20890046

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{1123}}^1$

素因数の和:1327

約数の個数: 16

約数和(自身を含む): 32047488

約数和(自身を除く): 11157442

約数列:

[1, 2, 71, 131, 142, 262, 1123, 2246, 9301, 18602, 79733, 147113, 159466, 294226, 10445023, 20890046]

約数ペア:

[(1, 20890046), (2, 10445023), (71, 294226), (131, 159466), (142, 147113), (262, 79733), (1123, 18602), (2246, 9301)]