20404791

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{22901}}^1$

素因数の和:22924

約数の個数: 20

約数和(自身を含む): 33253704

約数和(自身を除く): 12848913

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 22901, 68703, 206109, 251911, 618327, 755733, 1854981, 2267199, 6801597, 20404791]

約数ペア:

[(1, 20404791), (3, 6801597), (9, 2267199), (11, 1854981), (27, 755733), (33, 618327), (81, 251911), (99, 206109), (297, 68703), (891, 22901)]