28160811

素因数分解:

$3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4027}}^1$

素因数の和:4080

約数の個数: 32

約数和(自身を含む): 48980480

約数和(自身を除く): 20819669

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 111, 189, 259, 333, 777, 999, 2331, 4027, 6993, 12081, 28189, 36243, 84567, 108729, 148999, 253701, 446997, 761103, 1042993, 1340991, 3128979, 4022973, 9386937, 28160811]

約数ペア:

[(1, 28160811), (3, 9386937), (7, 4022973), (9, 3128979), (21, 1340991), (27, 1042993), (37, 761103), (63, 446997), (111, 253701), (189, 148999), (259, 108729), (333, 84567), (777, 36243), (999, 28189), (2331, 12081), (4027, 6993)]