20557816

素因数分解:

$2^3\times {\mathrm{419}}^1\times {\mathrm{6133}}^1$

素因数の和:6558

約数の個数: 16

約数和(自身を含む): 38644200

約数和(自身を除く): 18086384

約数列:

[1, 2, 4, 8, 419, 838, 1676, 3352, 6133, 12266, 24532, 49064, 2569727, 5139454, 10278908, 20557816]

約数ペア:

[(1, 20557816), (2, 10278908), (4, 5139454), (8, 2569727), (419, 49064), (838, 24532), (1676, 12266), (3352, 6133)]