986985

素因数分解:

$3^4\times 5^1\times {\mathrm{2437}}^1$

素因数の和:2454

約数の個数: 20

約数和(自身を含む): 1769988

約数和(自身を除く): 783003

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2437, 7311, 12185, 21933, 36555, 65799, 109665, 197397, 328995, 986985]

約数ペア:

[(1, 986985), (3, 328995), (5, 197397), (9, 109665), (15, 65799), (27, 36555), (45, 21933), (81, 12185), (135, 7311), (405, 2437)]