217933821

素因数分解:

$3^6\times 7^2\times {\mathrm{6101}}^1$

素因数の和:6133

約数の個数: 42

約数和(自身を含む): 380160702

約数和(自身を除く): 162226881

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 441, 567, 729, 1323, 1701, 3969, 5103, 6101, 11907, 18303, 35721, 42707, 54909, 128121, 164727, 298949, 384363, 494181, 896847, 1153089, 1482543, 2690541, 3459267, 4447629, 8071623, 10377801, 24214869, 31133403, 72644607, 217933821]

約数ペア:

[(1, 217933821), (3, 72644607), (7, 31133403), (9, 24214869), (21, 10377801), (27, 8071623), (49, 4447629), (63, 3459267), (81, 2690541), (147, 1482543), (189, 1153089), (243, 896847), (441, 494181), (567, 384363), (729, 298949), (1323, 164727), (1701, 128121), (3969, 54909), (5103, 42707), (6101, 35721), (11907, 18303)]