1331.0000000

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{2729}}^1$

素因数の和:2750

約数の個数: 40

約数和(自身を含む): 7927920

約数和(自身を除く): 4833234

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 378, 567, 1134, 2729, 5458, 8187, 16374, 19103, 24561, 38206, 49122, 57309, 73683, 114618, 147366, 171927, 221049, 343854, 442098, 515781, 1031562, 1547343, 3094686]

約数ペア:

[(1, 3094686), (2, 1547343), (3, 1031562), (6, 515781), (7, 442098), (9, 343854), (14, 221049), (18, 171927), (21, 147366), (27, 114618), (42, 73683), (54, 57309), (63, 49122), (81, 38206), (126, 24561), (162, 19103), (189, 16374), (378, 8187), (567, 5458), (1134, 2729)]