78047793

素因数分解:

$3^4\times {\mathrm{389}}^1\times {\mathrm{2477}}^1$

素因数の和:2878

約数の個数: 20

約数和(自身を含む): 116936820

約数和(自身を除く): 38889027

約数列:

[1, 3, 9, 27, 81, 389, 1167, 2477, 3501, 7431, 10503, 22293, 31509, 66879, 200637, 963553, 2890659, 8671977, 26015931, 78047793]

約数ペア:

[(1, 78047793), (3, 26015931), (9, 8671977), (27, 2890659), (81, 963553), (389, 200637), (1167, 66879), (2477, 31509), (3501, 22293), (7431, 10503)]