20406807

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{1907}}^1$

素因数の和:1983

約数の個数: 24

約数和(自身を含む): 31253040

約数和(自身を除く): 10846233

約数列:

[1, 3, 9, 29, 41, 87, 123, 261, 369, 1189, 1907, 3567, 5721, 10701, 17163, 55303, 78187, 165909, 234561, 497727, 703683, 2267423, 6802269, 20406807]

約数ペア:

[(1, 20406807), (3, 6802269), (9, 2267423), (29, 703683), (41, 497727), (87, 234561), (123, 165909), (261, 78187), (369, 55303), (1189, 17163), (1907, 10701), (3567, 5721)]