19388789

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2671}}^1$

素因数の和:2756

約数の個数: 16

約数和(自身を含む): 23855616

約数和(自身を除く): 4466827

約数列:

[1, 7, 17, 61, 119, 427, 1037, 2671, 7259, 18697, 45407, 162931, 317849, 1140517, 2769827, 19388789]

約数ペア:

[(1, 19388789), (7, 2769827), (17, 1140517), (61, 317849), (119, 162931), (427, 45407), (1037, 18697), (2671, 7259)]