20489668

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{1237}}^1$

素因数の和:1383

約数の個数: 24

約数和(自身を含む): 37125144

約数和(自身を除く): 16635476

約数列:

[1, 2, 4, 41, 82, 101, 164, 202, 404, 1237, 2474, 4141, 4948, 8282, 16564, 50717, 101434, 124937, 202868, 249874, 499748, 5122417, 10244834, 20489668]

約数ペア:

[(1, 20489668), (2, 10244834), (4, 5122417), (41, 499748), (82, 249874), (101, 202868), (164, 124937), (202, 101434), (404, 50717), (1237, 16564), (2474, 8282), (4141, 4948)]