19865741

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{1201}}^1$

素因数の和:1364

約数の個数: 16

約数和(自身を含む): 24232320

約数和(自身を除く): 4366579

約数列:

[1, 7, 17, 119, 139, 973, 1201, 2363, 8407, 16541, 20417, 142919, 166939, 1168573, 2837963, 19865741]

約数ペア:

[(1, 19865741), (7, 2837963), (17, 1168573), (119, 166939), (139, 142919), (973, 20417), (1201, 16541), (2363, 8407)]