2687985

素因数分解:

$3^4\times 5^1\times {\mathrm{6637}}^1$

素因数の和:6654

約数の個数: 20

約数和(自身を含む): 4819188

約数和(自身を除く): 2131203

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 6637, 19911, 33185, 59733, 99555, 179199, 298665, 537597, 895995, 2687985]

約数ペア:

[(1, 2687985), (3, 895995), (5, 537597), (9, 298665), (15, 179199), (27, 99555), (45, 59733), (81, 33185), (135, 19911), (405, 6637)]