1278049347

素因数分解:

$3^4\times {\mathrm{523}}^1\times {\mathrm{30169}}^1$

素因数の和:30704

約数の個数: 20

約数和(自身を含む): 1912898680

約数和(自身を除く): 634849333

約数列:

[1, 3, 9, 27, 81, 523, 1569, 4707, 14121, 30169, 42363, 90507, 271521, 814563, 2443689, 15778387, 47335161, 142005483, 426016449, 1278049347]

約数ペア:

[(1, 1278049347), (3, 426016449), (9, 142005483), (27, 47335161), (81, 15778387), (523, 2443689), (1569, 814563), (4707, 271521), (14121, 90507), (30169, 42363)]