18874359

素因数分解:

$3^2\times 7^2\times {\mathrm{127}}^1\times {\mathrm{337}}^1$

素因数の和:484

約数の個数: 36

約数和(自身を含む): 32058624

約数和(自身を除く): 13184265

約数列:

[1, 3, 7, 9, 21, 49, 63, 127, 147, 337, 381, 441, 889, 1011, 1143, 2359, 2667, 3033, 6223, 7077, 8001, 16513, 18669, 21231, 42799, 49539, 56007, 128397, 148617, 299593, 385191, 898779, 2097151, 2696337, 6291453, 18874359]

約数ペア:

[(1, 18874359), (3, 6291453), (7, 2696337), (9, 2097151), (21, 898779), (49, 385191), (63, 299593), (127, 148617), (147, 128397), (337, 56007), (381, 49539), (441, 42799), (889, 21231), (1011, 18669), (1143, 16513), (2359, 8001), (2667, 7077), (3033, 6223)]