20516936

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{53}}^2\times {\mathrm{83}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 43288560

約数和(自身を除く): 22771624

約数列:

[1, 2, 4, 8, 11, 22, 44, 53, 83, 88, 106, 166, 212, 332, 424, 583, 664, 913, 1166, 1826, 2332, 2809, 3652, 4399, 4664, 5618, 7304, 8798, 11236, 17596, 22472, 30899, 35192, 48389, 61798, 96778, 123596, 193556, 233147, 247192, 387112, 466294, 932588, 1865176, 2564617, 5129234, 10258468, 20516936]

約数ペア:

[(1, 20516936), (2, 10258468), (4, 5129234), (8, 2564617), (11, 1865176), (22, 932588), (44, 466294), (53, 387112), (83, 247192), (88, 233147), (106, 193556), (166, 123596), (212, 96778), (332, 61798), (424, 48389), (583, 35192), (664, 30899), (913, 22472), (1166, 17596), (1826, 11236), (2332, 8798), (2809, 7304), (3652, 5618), (4399, 4664)]