20009673

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:203

約数の個数: 40

約数和(自身を含む): 31363200

約数和(自身を除く): 11353527

約数列:

[1, 3, 9, 27, 53, 59, 79, 81, 159, 177, 237, 477, 531, 711, 1431, 1593, 2133, 3127, 4187, 4293, 4661, 4779, 6399, 9381, 12561, 13983, 28143, 37683, 41949, 84429, 113049, 125847, 247033, 253287, 339147, 377541, 741099, 2223297, 6669891, 20009673]

約数ペア:

[(1, 20009673), (3, 6669891), (9, 2223297), (27, 741099), (53, 377541), (59, 339147), (79, 253287), (81, 247033), (159, 125847), (177, 113049), (237, 84429), (477, 41949), (531, 37683), (711, 28143), (1431, 13983), (1593, 12561), (2133, 9381), (3127, 6399), (4187, 4779), (4293, 4661)]