19827020

素因数分解:

$2^2\times 5^1\times {\mathrm{907}}^1\times {\mathrm{1093}}^1$

素因数の和:2009

約数の個数: 24

約数和(自身を含む): 41720784

約数和(自身を除く): 21893764

約数列:

[1, 2, 4, 5, 10, 20, 907, 1093, 1814, 2186, 3628, 4372, 4535, 5465, 9070, 10930, 18140, 21860, 991351, 1982702, 3965404, 4956755, 9913510, 19827020]

約数ペア:

[(1, 19827020), (2, 9913510), (4, 4956755), (5, 3965404), (10, 1982702), (20, 991351), (907, 21860), (1093, 18140), (1814, 10930), (2186, 9070), (3628, 5465), (4372, 4535)]