20811802

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{49789}}^1$

素因数の和:49821

約数の個数: 16

約数和(自身を含む): 35848800

約数和(自身を除く): 15036998

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 49789, 99578, 547679, 945991, 1095358, 1891982, 10405901, 20811802]

約数ペア:

[(1, 20811802), (2, 10405901), (11, 1891982), (19, 1095358), (22, 945991), (38, 547679), (209, 99578), (418, 49789)]