20198957086

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{210533}}^1$

素因数の和:210649

約数の個数: 48

約数和(自身を含む): 38881419120

約数和(自身を除く): 18682462034

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 89, 98, 154, 178, 539, 623, 979, 1078, 1246, 1958, 4361, 6853, 8722, 13706, 47971, 95942, 210533, 421066, 1473731, 2315863, 2947462, 4631726, 10316117, 16211041, 18737437, 20632234, 32422082, 37474874, 113477287, 131162059, 206111807, 226954574, 262324118, 412223614, 918134413, 1442782649, 1836268826, 2885565298, 10099478543, 20198957086]

約数ペア:

[(1, 20198957086), (2, 10099478543), (7, 2885565298), (11, 1836268826), (14, 1442782649), (22, 918134413), (49, 412223614), (77, 262324118), (89, 226954574), (98, 206111807), (154, 131162059), (178, 113477287), (539, 37474874), (623, 32422082), (979, 20632234), (1078, 18737437), (1246, 16211041), (1958, 10316117), (4361, 4631726), (6853, 2947462), (8722, 2315863), (13706, 1473731), (47971, 421066), (95942, 210533)]