20835404

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{5023}}^1$

素因数の和:5105

約数の個数: 24

約数和(自身を含む): 39247488

約数和(自身を除く): 18412084

約数列:

[1, 2, 4, 17, 34, 61, 68, 122, 244, 1037, 2074, 4148, 5023, 10046, 20092, 85391, 170782, 306403, 341564, 612806, 1225612, 5208851, 10417702, 20835404]

約数ペア:

[(1, 20835404), (2, 10417702), (4, 5208851), (17, 1225612), (34, 612806), (61, 341564), (68, 306403), (122, 170782), (244, 85391), (1037, 20092), (2074, 10046), (4148, 5023)]