2578905

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{2729}}^1$

素因数の和:2750

約数の個数: 32

約数和(自身を含む): 5241600

約数和(自身を除く): 2662695

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 2729, 8187, 13645, 19103, 24561, 40935, 57309, 73683, 95515, 122805, 171927, 286545, 368415, 515781, 859635, 2578905]

約数ペア:

[(1, 2578905), (3, 859635), (5, 515781), (7, 368415), (9, 286545), (15, 171927), (21, 122805), (27, 95515), (35, 73683), (45, 57309), (63, 40935), (105, 24561), (135, 19103), (189, 13645), (315, 8187), (945, 2729)]