320427981

素因数分解:

$3^4\times {\mathrm{487}}^1\times {\mathrm{8123}}^1$

素因数の和:8622

約数の個数: 20

約数和(自身を含む): 479705952

約数和(自身を除く): 159277971

約数列:

[1, 3, 9, 27, 81, 487, 1461, 4383, 8123, 13149, 24369, 39447, 73107, 219321, 657963, 3955901, 11867703, 35603109, 106809327, 320427981]

約数ペア:

[(1, 320427981), (3, 106809327), (9, 35603109), (27, 11867703), (81, 3955901), (487, 657963), (1461, 219321), (4383, 73107), (8123, 39447), (13149, 24369)]