20791496

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{1237}}^1$

素因数の和:1445

約数の個数: 32

約数和(自身を含む): 42785280

約数和(自身を除く): 21993784

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 191, 382, 764, 1237, 1528, 2101, 2474, 4202, 4948, 8404, 9896, 13607, 16808, 27214, 54428, 108856, 236267, 472534, 945068, 1890136, 2598937, 5197874, 10395748, 20791496]

約数ペア:

[(1, 20791496), (2, 10395748), (4, 5197874), (8, 2598937), (11, 1890136), (22, 945068), (44, 472534), (88, 236267), (191, 108856), (382, 54428), (764, 27214), (1237, 16808), (1528, 13607), (2101, 9896), (2474, 8404), (4202, 4948)]