20217344

素因数分解:

$2^9\times 7^1\times {\mathrm{5641}}^1$

素因数の和:5666

約数の個数: 40

約数和(自身を含む): 46174128

約数和(自身を除く): 25956784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1792, 3584, 5641, 11282, 22564, 39487, 45128, 78974, 90256, 157948, 180512, 315896, 361024, 631792, 722048, 1263584, 1444096, 2527168, 2888192, 5054336, 10108672, 20217344]

約数ペア:

[(1, 20217344), (2, 10108672), (4, 5054336), (7, 2888192), (8, 2527168), (14, 1444096), (16, 1263584), (28, 722048), (32, 631792), (56, 361024), (64, 315896), (112, 180512), (128, 157948), (224, 90256), (256, 78974), (448, 45128), (512, 39487), (896, 22564), (1792, 11282), (3584, 5641)]