13561275

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1987}}^1$

素因数の和:2020

約数の個数: 48

約数和(自身を含む): 27609344

約数和(自身を除く): 14048069

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 65, 75, 91, 105, 175, 195, 273, 325, 455, 525, 975, 1365, 1987, 2275, 5961, 6825, 9935, 13909, 25831, 29805, 41727, 49675, 69545, 77493, 129155, 149025, 180817, 208635, 347725, 387465, 542451, 645775, 904085, 1043175, 1937325, 2712255, 4520425, 13561275]

約数ペア:

[(1, 13561275), (3, 4520425), (5, 2712255), (7, 1937325), (13, 1043175), (15, 904085), (21, 645775), (25, 542451), (35, 387465), (39, 347725), (65, 208635), (75, 180817), (91, 149025), (105, 129155), (175, 77493), (195, 69545), (273, 49675), (325, 41727), (455, 29805), (525, 25831), (975, 13909), (1365, 9935), (1987, 6825), (2275, 5961)]