1904427

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:112

約数の個数: 48

約数和(自身を含む): 3477760

約数和(自身を除く): 1573333

約数列:

[1, 3, 7, 9, 19, 21, 37, 43, 57, 63, 111, 129, 133, 171, 259, 301, 333, 387, 399, 703, 777, 817, 903, 1197, 1591, 2109, 2331, 2451, 2709, 4773, 4921, 5719, 6327, 7353, 11137, 14319, 14763, 17157, 30229, 33411, 44289, 51471, 90687, 100233, 211603, 272061, 634809, 1904427]

約数ペア:

[(1, 1904427), (3, 634809), (7, 272061), (9, 211603), (19, 100233), (21, 90687), (37, 51471), (43, 44289), (57, 33411), (63, 30229), (111, 17157), (129, 14763), (133, 14319), (171, 11137), (259, 7353), (301, 6327), (333, 5719), (387, 4921), (399, 4773), (703, 2709), (777, 2451), (817, 2331), (903, 2109), (1197, 1591)]