2857995

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 5820672

約数和(自身を除く): 2962677

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 43, 45, 63, 105, 129, 211, 215, 301, 315, 387, 633, 645, 903, 1055, 1477, 1505, 1899, 1935, 2709, 3165, 4431, 4515, 7385, 9073, 9495, 13293, 13545, 22155, 27219, 45365, 63511, 66465, 81657, 136095, 190533, 317555, 408285, 571599, 952665, 2857995]

約数ペア:

[(1, 2857995), (3, 952665), (5, 571599), (7, 408285), (9, 317555), (15, 190533), (21, 136095), (35, 81657), (43, 66465), (45, 63511), (63, 45365), (105, 27219), (129, 22155), (211, 13545), (215, 13293), (301, 9495), (315, 9073), (387, 7385), (633, 4515), (645, 4431), (903, 3165), (1055, 2709), (1477, 1935), (1505, 1899)]