20495004

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{39719}}^1$

素因数の和:39769

約数の個数: 24

約数和(自身を含む): 48935040

約数和(自身を除く): 28440036

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 39719, 79438, 119157, 158876, 238314, 476628, 1707917, 3415834, 5123751, 6831668, 10247502, 20495004]

約数ペア:

[(1, 20495004), (2, 10247502), (3, 6831668), (4, 5123751), (6, 3415834), (12, 1707917), (43, 476628), (86, 238314), (129, 158876), (172, 119157), (258, 79438), (516, 39719)]