21075406

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41651}}^1$

素因数の和:41687

約数の個数: 16

約数和(自身を含む): 35987328

約数和(自身を除く): 14911922

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 41651, 83302, 458161, 916322, 957973, 1915946, 10537703, 21075406]

約数ペア:

[(1, 21075406), (2, 10537703), (11, 1915946), (22, 957973), (23, 916322), (46, 458161), (253, 83302), (506, 41651)]