28516866

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:287

約数の個数: 64

約数和(自身を含む): 67516416

約数和(自身を除く): 38999550

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 71, 73, 131, 142, 146, 213, 219, 262, 393, 426, 438, 497, 511, 786, 917, 994, 1022, 1491, 1533, 1834, 2751, 2982, 3066, 5183, 5502, 9301, 9563, 10366, 15549, 18602, 19126, 27903, 28689, 31098, 36281, 55806, 57378, 65107, 66941, 72562, 108843, 130214, 133882, 195321, 200823, 217686, 390642, 401646, 678973, 1357946, 2036919, 4073838, 4752811, 9505622, 14258433, 28516866]

約数ペア:

[(1, 28516866), (2, 14258433), (3, 9505622), (6, 4752811), (7, 4073838), (14, 2036919), (21, 1357946), (42, 678973), (71, 401646), (73, 390642), (131, 217686), (142, 200823), (146, 195321), (213, 133882), (219, 130214), (262, 108843), (393, 72562), (426, 66941), (438, 65107), (497, 57378), (511, 55806), (786, 36281), (917, 31098), (994, 28689), (1022, 27903), (1491, 19126), (1533, 18602), (1834, 15549), (2751, 10366), (2982, 9563), (3066, 9301), (5183, 5502)]