19878081106

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{4447}}^1\times {\mathrm{171923}}^1$

素因数の和:176385

約数の個数: 16

約数和(自身を含む): 32118153984

約数和(自身を除く): 12240072878

約数列:

[1, 2, 13, 26, 4447, 8894, 57811, 115622, 171923, 343846, 2234999, 4469998, 764541581, 1529083162, 9939040553, 19878081106]

約数ペア:

[(1, 19878081106), (2, 9939040553), (13, 1529083162), (26, 764541581), (4447, 4469998), (8894, 2234999), (57811, 343846), (115622, 171923)]