1561287

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:92

約数の個数: 48

約数和(自身を含む): 2808960

約数和(自身を除く): 1247673

約数列:

[1, 3, 7, 13, 19, 21, 39, 43, 49, 57, 91, 129, 133, 147, 247, 273, 301, 399, 559, 637, 741, 817, 903, 931, 1677, 1729, 1911, 2107, 2451, 2793, 3913, 5187, 5719, 6321, 10621, 11739, 12103, 17157, 27391, 31863, 36309, 40033, 74347, 82173, 120099, 223041, 520429, 1561287]

約数ペア:

[(1, 1561287), (3, 520429), (7, 223041), (13, 120099), (19, 82173), (21, 74347), (39, 40033), (43, 36309), (49, 31863), (57, 27391), (91, 17157), (129, 12103), (133, 11739), (147, 10621), (247, 6321), (273, 5719), (301, 5187), (399, 3913), (559, 2793), (637, 2451), (741, 2107), (817, 1911), (903, 1729), (931, 1677)]