2804139

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{2663}}^1$

素因数の和:2688

約数の個数: 20

約数和(自身を含む): 4512816

約数和(自身を除く): 1708677

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 2663, 7989, 23967, 34619, 71901, 103857, 215703, 311571, 934713, 2804139]

約数ペア:

[(1, 2804139), (3, 934713), (9, 311571), (13, 215703), (27, 103857), (39, 71901), (81, 34619), (117, 23967), (351, 7989), (1053, 2663)]