19408990

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47339}}^1$

素因数の和:47387

約数の個数: 16

約数和(自身を含む): 35789040

約数和(自身を除く): 16380050

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 47339, 94678, 236695, 473390, 1940899, 3881798, 9704495, 19408990]

約数ペア:

[(1, 19408990), (2, 9704495), (5, 3881798), (10, 1940899), (41, 473390), (82, 236695), (205, 94678), (410, 47339)]