20839252

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{9421}}^1$

素因数の和:9511

約数の個数: 24

約数和(自身を含む): 42210560

約数和(自身を除く): 21371308

約数列:

[1, 2, 4, 7, 14, 28, 79, 158, 316, 553, 1106, 2212, 9421, 18842, 37684, 65947, 131894, 263788, 744259, 1488518, 2977036, 5209813, 10419626, 20839252]

約数ペア:

[(1, 20839252), (2, 10419626), (4, 5209813), (7, 2977036), (14, 1488518), (28, 744259), (79, 263788), (158, 131894), (316, 65947), (553, 37684), (1106, 18842), (2212, 9421)]