2021901115

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{393749}}^1$

素因数の和:393846

約数の個数: 16

約数和(自身を含む): 2646000000

約数和(自身を除く): 624098885

約数列:

[1, 5, 13, 65, 79, 395, 1027, 5135, 393749, 1968745, 5118737, 25593685, 31106171, 155530855, 404380223, 2021901115]

約数ペア:

[(1, 2021901115), (5, 404380223), (13, 155530855), (65, 31106171), (79, 25593685), (395, 5118737), (1027, 1968745), (5135, 393749)]