28889217

素因数分解:

$3^4\times 7^1\times {\mathrm{50951}}^1$

素因数の和:50970

約数の個数: 20

約数和(自身を含む): 49321536

約数和(自身を除く): 20432319

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 50951, 152853, 356657, 458559, 1069971, 1375677, 3209913, 4127031, 9629739, 28889217]

約数ペア:

[(1, 28889217), (3, 9629739), (7, 4127031), (9, 3209913), (21, 1375677), (27, 1069971), (63, 458559), (81, 356657), (189, 152853), (567, 50951)]