20889544

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{200861}}^1$

素因数の和:200880

約数の個数: 16

約数和(自身を含む): 42181020

約数和(自身を除く): 21291476

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 200861, 401722, 803444, 1606888, 2611193, 5222386, 10444772, 20889544]

約数ペア:

[(1, 20889544), (2, 10444772), (4, 5222386), (8, 2611193), (13, 1606888), (26, 803444), (52, 401722), (104, 200861)]