20418412

素因数分解:

$2^2\times 7^1\times {\mathrm{367}}^1\times {\mathrm{1987}}^1$

素因数の和:2365

約数の個数: 24

約数和(自身を含む): 40968704

約数和(自身を除く): 20550292

約数列:

[1, 2, 4, 7, 14, 28, 367, 734, 1468, 1987, 2569, 3974, 5138, 7948, 10276, 13909, 27818, 55636, 729229, 1458458, 2916916, 5104603, 10209206, 20418412]

約数ペア:

[(1, 20418412), (2, 10209206), (4, 5104603), (7, 2916916), (14, 1458458), (28, 729229), (367, 55636), (734, 27818), (1468, 13909), (1987, 10276), (2569, 7948), (3974, 5138)]