21899727

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{9323}}^1$

素因数の和:9364

約数の個数: 20

約数和(自身を含む): 33846120

約数和(自身を除く): 11946393

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 9323, 27969, 83907, 251721, 270367, 755163, 811101, 2433303, 7299909, 21899727]

約数ペア:

[(1, 21899727), (3, 7299909), (9, 2433303), (27, 811101), (29, 755163), (81, 270367), (87, 251721), (261, 83907), (783, 27969), (2349, 9323)]