20907768

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1283}}^1$

素因数の和:1396

約数の個数: 64

約数和(自身を含む): 60399360

約数和(自身を除く): 39491592

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 97, 168, 194, 291, 388, 582, 679, 776, 1164, 1283, 1358, 2037, 2328, 2566, 2716, 3849, 4074, 5132, 5432, 7698, 8148, 8981, 10264, 15396, 16296, 17962, 26943, 30792, 35924, 53886, 71848, 107772, 124451, 215544, 248902, 373353, 497804, 746706, 871157, 995608, 1493412, 1742314, 2613471, 2986824, 3484628, 5226942, 6969256, 10453884, 20907768]

約数ペア:

[(1, 20907768), (2, 10453884), (3, 6969256), (4, 5226942), (6, 3484628), (7, 2986824), (8, 2613471), (12, 1742314), (14, 1493412), (21, 995608), (24, 871157), (28, 746706), (42, 497804), (56, 373353), (84, 248902), (97, 215544), (168, 124451), (194, 107772), (291, 71848), (388, 53886), (582, 35924), (679, 30792), (776, 26943), (1164, 17962), (1283, 16296), (1358, 15396), (2037, 10264), (2328, 8981), (2566, 8148), (2716, 7698), (3849, 5432), (4074, 5132)]