20784176

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{9767}}^1$

素因数の和:9801

約数の個数: 40

約数和(自身を含む): 48449280

約数和(自身を除く): 27665104

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 9767, 19534, 39068, 68369, 78136, 136738, 156272, 185573, 273476, 371146, 546952, 742292, 1093904, 1299011, 1484584, 2598022, 2969168, 5196044, 10392088, 20784176]

約数ペア:

[(1, 20784176), (2, 10392088), (4, 5196044), (7, 2969168), (8, 2598022), (14, 1484584), (16, 1299011), (19, 1093904), (28, 742292), (38, 546952), (56, 371146), (76, 273476), (112, 185573), (133, 156272), (152, 136738), (266, 78136), (304, 68369), (532, 39068), (1064, 19534), (2128, 9767)]