2561480.00000000

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{443}}^1$

素因数の和:683

約数の個数: 32

約数和(自身を含む): 60241920

約数和(自身を除く): 22946193

約数列:

[1, 3, 7, 19, 21, 57, 133, 211, 399, 443, 633, 1329, 1477, 3101, 4009, 4431, 8417, 9303, 12027, 25251, 28063, 58919, 84189, 93473, 176757, 280419, 654311, 1775987, 1962933, 5327961, 12431909, 37295727]

約数ペア:

[(1, 37295727), (3, 12431909), (7, 5327961), (19, 1962933), (21, 1775987), (57, 654311), (133, 280419), (211, 176757), (399, 93473), (443, 84189), (633, 58919), (1329, 28063), (1477, 25251), (3101, 12027), (4009, 9303), (4431, 8417)]