20405836

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{6353}}^1$

素因数の和:6441

約数の個数: 24

約数和(自身を含む): 39496464

約数和(自身を除く): 19090628

約数列:

[1, 2, 4, 11, 22, 44, 73, 146, 292, 803, 1606, 3212, 6353, 12706, 25412, 69883, 139766, 279532, 463769, 927538, 1855076, 5101459, 10202918, 20405836]

約数ペア:

[(1, 20405836), (2, 10202918), (4, 5101459), (11, 1855076), (22, 927538), (44, 463769), (73, 279532), (146, 139766), (292, 69883), (803, 25412), (1606, 12706), (3212, 6353)]