7728021

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1319}}^1$

素因数の和:1366

約数の個数: 32

約数和(自身を含む): 13516800

約数和(自身を除く): 5788779

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 93, 189, 217, 279, 651, 837, 1319, 1953, 3957, 5859, 9233, 11871, 27699, 35613, 40889, 83097, 122667, 249291, 286223, 368001, 858669, 1104003, 2576007, 7728021]

約数ペア:

[(1, 7728021), (3, 2576007), (7, 1104003), (9, 858669), (21, 368001), (27, 286223), (31, 249291), (63, 122667), (93, 83097), (189, 40889), (217, 35613), (279, 27699), (651, 11871), (837, 9233), (1319, 5859), (1953, 3957)]