19754756

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{523}}^1$

素因数の和:624

約数の個数: 48

約数和(自身を含む): 42255360

約数和(自身を除く): 22500604

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 71, 76, 133, 142, 266, 284, 497, 523, 532, 994, 1046, 1349, 1988, 2092, 2698, 3661, 5396, 7322, 9443, 9937, 14644, 18886, 19874, 37133, 37772, 39748, 69559, 74266, 139118, 148532, 259931, 278236, 519862, 705527, 1039724, 1411054, 2822108, 4938689, 9877378, 19754756]

約数ペア:

[(1, 19754756), (2, 9877378), (4, 4938689), (7, 2822108), (14, 1411054), (19, 1039724), (28, 705527), (38, 519862), (71, 278236), (76, 259931), (133, 148532), (142, 139118), (266, 74266), (284, 69559), (497, 39748), (523, 37772), (532, 37133), (994, 19874), (1046, 18886), (1349, 14644), (1988, 9937), (2092, 9443), (2698, 7322), (3661, 5396)]