20771816

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{199729}}^1$

素因数の和:199748

約数の個数: 16

約数和(自身を含む): 41943300

約数和(自身を除く): 21171484

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 199729, 399458, 798916, 1597832, 2596477, 5192954, 10385908, 20771816]

約数ペア:

[(1, 20771816), (2, 10385908), (4, 5192954), (8, 2596477), (13, 1597832), (26, 798916), (52, 399458), (104, 199729)]