21489688

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{4139}}^1$

素因数の和:4215

約数の個数: 32

約数和(自身を含む): 44712000

約数和(自身を除く): 23222312

約数列:

[1, 2, 4, 8, 11, 22, 44, 59, 88, 118, 236, 472, 649, 1298, 2596, 4139, 5192, 8278, 16556, 33112, 45529, 91058, 182116, 244201, 364232, 488402, 976804, 1953608, 2686211, 5372422, 10744844, 21489688]

約数ペア:

[(1, 21489688), (2, 10744844), (4, 5372422), (8, 2686211), (11, 1953608), (22, 976804), (44, 488402), (59, 364232), (88, 244201), (118, 182116), (236, 91058), (472, 45529), (649, 33112), (1298, 16556), (2596, 8278), (4139, 5192)]