81431487

素因数分解:

$3^6\times {\mathrm{37}}^1\times {\mathrm{3019}}^1$

素因数の和:3074

約数の個数: 28

約数和(自身を含む): 125432680

約数和(自身を除く): 44001193

約数列:

[1, 3, 9, 27, 37, 81, 111, 243, 333, 729, 999, 2997, 3019, 8991, 9057, 26973, 27171, 81513, 111703, 244539, 335109, 733617, 1005327, 2200851, 3015981, 9047943, 27143829, 81431487]

約数ペア:

[(1, 81431487), (3, 27143829), (9, 9047943), (27, 3015981), (37, 2200851), (81, 1005327), (111, 733617), (243, 335109), (333, 244539), (729, 111703), (999, 81513), (2997, 27171), (3019, 26973), (8991, 9057)]