20688872

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{136111}}^1$

素因数の和:136136

約数の個数: 16

約数和(自身を含む): 40833600

約数和(自身を除く): 20144728

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 136111, 272222, 544444, 1088888, 2586109, 5172218, 10344436, 20688872]

約数ペア:

[(1, 20688872), (2, 10344436), (4, 5172218), (8, 2586109), (19, 1088888), (38, 544444), (76, 272222), (152, 136111)]