20106891

素因数分解:

$3^2\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1783}}^1$

素因数の和:1975

約数の個数: 24

約数和(自身を含む): 33396480

約数和(自身を除く): 13289589

約数列:

[1, 3, 7, 9, 21, 63, 179, 537, 1253, 1611, 1783, 3759, 5349, 11277, 12481, 16047, 37443, 112329, 319157, 957471, 2234099, 2872413, 6702297, 20106891]

約数ペア:

[(1, 20106891), (3, 6702297), (7, 2872413), (9, 2234099), (21, 957471), (63, 319157), (179, 112329), (537, 37443), (1253, 16047), (1611, 12481), (1783, 11277), (3759, 5349)]