3987321

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5381}}^1$

素因数の和:5416

約数の個数: 16

約数和(自身を含む): 6027840

約数和(自身を除く): 2040519

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 5381, 16143, 69953, 102239, 209859, 306717, 1329107, 3987321]

約数ペア:

[(1, 3987321), (3, 1329107), (13, 306717), (19, 209859), (39, 102239), (57, 69953), (247, 16143), (741, 5381)]