19803746

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{1567}}^1$

素因数の和:1729

約数の個数: 16

約数和(自身を含む): 30481920

約数和(自身を除く): 10678174

約数列:

[1, 2, 71, 89, 142, 178, 1567, 3134, 6319, 12638, 111257, 139463, 222514, 278926, 9901873, 19803746]

約数ペア:

[(1, 19803746), (2, 9901873), (71, 278926), (89, 222514), (142, 139463), (178, 111257), (1567, 12638), (3134, 6319)]