20865338

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:302

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 13971142

約数列:

[1, 2, 13, 26, 71, 89, 127, 142, 178, 254, 923, 1157, 1651, 1846, 2314, 3302, 6319, 9017, 11303, 12638, 18034, 22606, 82147, 117221, 146939, 164294, 234442, 293878, 802513, 1605026, 10432669, 20865338]

約数ペア:

[(1, 20865338), (2, 10432669), (13, 1605026), (26, 802513), (71, 293878), (89, 234442), (127, 164294), (142, 146939), (178, 117221), (254, 82147), (923, 22606), (1157, 18034), (1651, 12638), (1846, 11303), (2314, 9017), (3302, 6319)]