20173013896

素因数分解:

$2^3\times 7^1\times {\mathrm{643}}^1\times {\mathrm{560237}}^1$

素因数の和:560893

約数の個数: 32

約数和(自身を含む): 43295192640

約数和(自身を除く): 23122178744

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 643, 1286, 2572, 4501, 5144, 9002, 18004, 36008, 560237, 1120474, 2240948, 3921659, 4481896, 7843318, 15686636, 31373272, 360232391, 720464782, 1440929564, 2521626737, 2881859128, 5043253474, 10086506948, 20173013896]

約数ペア:

[(1, 20173013896), (2, 10086506948), (4, 5043253474), (7, 2881859128), (8, 2521626737), (14, 1440929564), (28, 720464782), (56, 360232391), (643, 31373272), (1286, 15686636), (2572, 7843318), (4501, 4481896), (5144, 3921659), (9002, 2240948), (18004, 1120474), (36008, 560237)]