20875778

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{283}}^1\times {\mathrm{479}}^1$

素因数の和:782

約数の個数: 32

約数和(自身を含む): 39260160

約数和(自身を除く): 18384382

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 283, 479, 566, 958, 1981, 3113, 3353, 3962, 5269, 6226, 6706, 10538, 21791, 36883, 43582, 73766, 135557, 271114, 948899, 1491127, 1897798, 2982254, 10437889, 20875778]

約数ペア:

[(1, 20875778), (2, 10437889), (7, 2982254), (11, 1897798), (14, 1491127), (22, 948899), (77, 271114), (154, 135557), (283, 73766), (479, 43582), (566, 36883), (958, 21791), (1981, 10538), (3113, 6706), (3353, 6226), (3962, 5269)]