161778303

素因数分解:

$3^4\times {\mathrm{1201}}^1\times {\mathrm{1663}}^1$

素因数の和:2876

約数の個数: 20

約数和(自身を含む): 242015488

約数和(自身を除く): 80237185

約数列:

[1, 3, 9, 27, 81, 1201, 1663, 3603, 4989, 10809, 14967, 32427, 44901, 97281, 134703, 1997263, 5991789, 17975367, 53926101, 161778303]

約数ペア:

[(1, 161778303), (3, 53926101), (9, 17975367), (27, 5991789), (81, 1997263), (1201, 134703), (1663, 97281), (3603, 44901), (4989, 32427), (10809, 14967)]