19814081

素因数分解:

$7^3\times {\mathrm{61}}^1\times {\mathrm{947}}^1$

素因数の和:1029

約数の個数: 16

約数和(自身を含む): 23510400

約数和(自身を除く): 3696319

約数列:

[1, 7, 49, 61, 343, 427, 947, 2989, 6629, 20923, 46403, 57767, 324821, 404369, 2830583, 19814081]

約数ペア:

[(1, 19814081), (7, 2830583), (49, 404369), (61, 324821), (343, 57767), (427, 46403), (947, 20923), (2989, 6629)]