15397809

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 25992000

約数和(自身を除く): 10594191

約数列:

[1, 3, 7, 19, 21, 37, 49, 57, 111, 133, 147, 149, 259, 399, 447, 703, 777, 931, 1043, 1813, 2109, 2793, 2831, 3129, 4921, 5439, 5513, 7301, 8493, 14763, 16539, 19817, 21903, 34447, 38591, 59451, 103341, 104747, 115773, 138719, 270137, 314241, 416157, 733229, 810411, 2199687, 5132603, 15397809]

約数ペア:

[(1, 15397809), (3, 5132603), (7, 2199687), (19, 810411), (21, 733229), (37, 416157), (49, 314241), (57, 270137), (111, 138719), (133, 115773), (147, 104747), (149, 103341), (259, 59451), (399, 38591), (447, 34447), (703, 21903), (777, 19817), (931, 16539), (1043, 14763), (1813, 8493), (2109, 7301), (2793, 5513), (2831, 5439), (3129, 4921)]