664803531

素因数分解:

$3^6\times 7^2\times {\mathrm{37}}^1\times {\mathrm{503}}^1$

素因数の和:572

約数の個数: 84

約数和(自身を含む): 1193188752

約数和(自身を除く): 528385221

約数列:

[1, 3, 7, 9, 21, 27, 37, 49, 63, 81, 111, 147, 189, 243, 259, 333, 441, 503, 567, 729, 777, 999, 1323, 1509, 1701, 1813, 2331, 2997, 3521, 3969, 4527, 5103, 5439, 6993, 8991, 10563, 11907, 13581, 16317, 18611, 20979, 24647, 26973, 31689, 35721, 40743, 48951, 55833, 62937, 73941, 95067, 122229, 130277, 146853, 167499, 188811, 221823, 285201, 366687, 390831, 440559, 502497, 665469, 855603, 911939, 1172493, 1321677, 1507491, 1996407, 2566809, 2735817, 3517479, 4522473, 5989221, 8207451, 10552437, 13567419, 17967663, 24622353, 31657311, 73867059, 94971933, 221601177, 664803531]

約数ペア:

[(1, 664803531), (3, 221601177), (7, 94971933), (9, 73867059), (21, 31657311), (27, 24622353), (37, 17967663), (49, 13567419), (63, 10552437), (81, 8207451), (111, 5989221), (147, 4522473), (189, 3517479), (243, 2735817), (259, 2566809), (333, 1996407), (441, 1507491), (503, 1321677), (567, 1172493), (729, 911939), (777, 855603), (999, 665469), (1323, 502497), (1509, 440559), (1701, 390831), (1813, 366687), (2331, 285201), (2997, 221823), (3521, 188811), (3969, 167499), (4527, 146853), (5103, 130277), (5439, 122229), (6993, 95067), (8991, 73941), (10563, 62937), (11907, 55833), (13581, 48951), (16317, 40743), (18611, 35721), (20979, 31689), (24647, 26973)]