20948224

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:243

約数の個数: 72

約数和(自身を含む): 46946592

約数和(自身を除く): 25998368

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 43, 44, 64, 86, 88, 128, 172, 173, 176, 256, 344, 346, 352, 473, 688, 692, 704, 946, 1376, 1384, 1408, 1892, 1903, 2752, 2768, 2816, 3784, 3806, 5504, 5536, 7439, 7568, 7612, 11008, 11072, 14878, 15136, 15224, 22144, 29756, 30272, 30448, 44288, 59512, 60544, 60896, 81829, 119024, 121088, 121792, 163658, 238048, 243584, 327316, 476096, 487168, 654632, 952192, 1309264, 1904384, 2618528, 5237056, 10474112, 20948224]

約数ペア:

[(1, 20948224), (2, 10474112), (4, 5237056), (8, 2618528), (11, 1904384), (16, 1309264), (22, 952192), (32, 654632), (43, 487168), (44, 476096), (64, 327316), (86, 243584), (88, 238048), (128, 163658), (172, 121792), (173, 121088), (176, 119024), (256, 81829), (344, 60896), (346, 60544), (352, 59512), (473, 44288), (688, 30448), (692, 30272), (704, 29756), (946, 22144), (1376, 15224), (1384, 15136), (1408, 14878), (1892, 11072), (1903, 11008), (2752, 7612), (2768, 7568), (2816, 7439), (3784, 5536), (3806, 5504)]