19956728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{941}}^1$

素因数の和:1199

約数の個数: 32

約数和(自身を含む): 41033520

約数和(自身を除く): 21076792

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 241, 482, 941, 964, 1882, 1928, 2651, 3764, 5302, 7528, 10351, 10604, 20702, 21208, 41404, 82808, 226781, 453562, 907124, 1814248, 2494591, 4989182, 9978364, 19956728]

約数ペア:

[(1, 19956728), (2, 9978364), (4, 4989182), (8, 2494591), (11, 1814248), (22, 907124), (44, 453562), (88, 226781), (241, 82808), (482, 41404), (941, 21208), (964, 20702), (1882, 10604), (1928, 10351), (2651, 7528), (3764, 5302)]