20426956

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{2957}}^1$

素因数の和:3129

約数の個数: 24

約数和(自身を含む): 39258576

約数和(自身を除く): 18831620

約数列:

[1, 2, 4, 11, 22, 44, 157, 314, 628, 1727, 2957, 3454, 5914, 6908, 11828, 32527, 65054, 130108, 464249, 928498, 1856996, 5106739, 10213478, 20426956]

約数ペア:

[(1, 20426956), (2, 10213478), (4, 5106739), (11, 1856996), (22, 928498), (44, 464249), (157, 130108), (314, 65054), (628, 32527), (1727, 11828), (2957, 6908), (3454, 5914)]