21708162

素因数分解:

$2^1\times 3^7\times 7^1\times {\mathrm{709}}^1$

素因数の和:739

約数の個数: 64

約数和(自身を含む): 55891200

約数和(自身を除く): 34183038

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 243, 378, 486, 567, 709, 729, 1134, 1418, 1458, 1701, 2127, 2187, 3402, 4254, 4374, 4963, 5103, 6381, 9926, 10206, 12762, 14889, 15309, 19143, 29778, 30618, 38286, 44667, 57429, 89334, 114858, 134001, 172287, 268002, 344574, 402003, 516861, 804006, 1033722, 1206009, 1550583, 2412018, 3101166, 3618027, 7236054, 10854081, 21708162]

約数ペア:

[(1, 21708162), (2, 10854081), (3, 7236054), (6, 3618027), (7, 3101166), (9, 2412018), (14, 1550583), (18, 1206009), (21, 1033722), (27, 804006), (42, 516861), (54, 402003), (63, 344574), (81, 268002), (126, 172287), (162, 134001), (189, 114858), (243, 89334), (378, 57429), (486, 44667), (567, 38286), (709, 30618), (729, 29778), (1134, 19143), (1418, 15309), (1458, 14889), (1701, 12762), (2127, 10206), (2187, 9926), (3402, 6381), (4254, 5103), (4374, 4963)]