78390909

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{31219}}^1$

素因数の和:31262

約数の個数: 20

約数和(自身を含む): 120883840

約数和(自身を除く): 42492931

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 31219, 93657, 280971, 842913, 967789, 2528739, 2903367, 8710101, 26130303, 78390909]

約数ペア:

[(1, 78390909), (3, 26130303), (9, 8710101), (27, 2903367), (31, 2528739), (81, 967789), (93, 842913), (279, 280971), (837, 93657), (2511, 31219)]