16721824

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3929}}^1$

素因数の和:3965

約数の個数: 48

約数和(自身を含む): 39614400

約数和(自身を除く): 22892576

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 76, 112, 133, 152, 224, 266, 304, 532, 608, 1064, 2128, 3929, 4256, 7858, 15716, 27503, 31432, 55006, 62864, 74651, 110012, 125728, 149302, 220024, 298604, 440048, 522557, 597208, 880096, 1045114, 1194416, 2090228, 2388832, 4180456, 8360912, 16721824]

約数ペア:

[(1, 16721824), (2, 8360912), (4, 4180456), (7, 2388832), (8, 2090228), (14, 1194416), (16, 1045114), (19, 880096), (28, 597208), (32, 522557), (38, 440048), (56, 298604), (76, 220024), (112, 149302), (133, 125728), (152, 110012), (224, 74651), (266, 62864), (304, 55006), (532, 31432), (608, 27503), (1064, 15716), (2128, 7858), (3929, 4256)]