20767999

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2861}}^1$

素因数の和:2946

約数の個数: 16

約数和(自身を含む): 25551936

約数和(自身を除く): 4783937

約数列:

[1, 7, 17, 61, 119, 427, 1037, 2861, 7259, 20027, 48637, 174521, 340459, 1221647, 2966857, 20767999]

約数ペア:

[(1, 20767999), (7, 2966857), (17, 1221647), (61, 340459), (119, 174521), (427, 48637), (1037, 20027), (2861, 7259)]