20399792

素因数分解:

$2^4\times 7^1\times {\mathrm{182141}}^1$

素因数の和:182156

約数の個数: 20

約数和(自身を含む): 45171216

約数和(自身を除く): 24771424

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 182141, 364282, 728564, 1274987, 1457128, 2549974, 2914256, 5099948, 10199896, 20399792]

約数ペア:

[(1, 20399792), (2, 10199896), (4, 5099948), (7, 2914256), (8, 2549974), (14, 1457128), (16, 1274987), (28, 728564), (56, 364282), (112, 182141)]