21196672

素因数分解:

$2^7\times 7^1\times {\mathrm{41}}^1\times {\mathrm{577}}^1$

素因数の和:639

約数の個数: 64

約数和(自身を含む): 49523040

約数和(自身を除く): 28326368

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 56, 64, 82, 112, 128, 164, 224, 287, 328, 448, 574, 577, 656, 896, 1148, 1154, 1312, 2296, 2308, 2624, 4039, 4592, 4616, 5248, 8078, 9184, 9232, 16156, 18368, 18464, 23657, 32312, 36736, 36928, 47314, 64624, 73856, 94628, 129248, 165599, 189256, 258496, 331198, 378512, 516992, 662396, 757024, 1324792, 1514048, 2649584, 3028096, 5299168, 10598336, 21196672]

約数ペア:

[(1, 21196672), (2, 10598336), (4, 5299168), (7, 3028096), (8, 2649584), (14, 1514048), (16, 1324792), (28, 757024), (32, 662396), (41, 516992), (56, 378512), (64, 331198), (82, 258496), (112, 189256), (128, 165599), (164, 129248), (224, 94628), (287, 73856), (328, 64624), (448, 47314), (574, 36928), (577, 36736), (656, 32312), (896, 23657), (1148, 18464), (1154, 18368), (1312, 16156), (2296, 9232), (2308, 9184), (2624, 8078), (4039, 5248), (4592, 4616)]