20908936

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{18803}}^1$

素因数の和:18948

約数の個数: 16

約数和(自身を含む): 39488400

約数和(自身を除く): 18579464

約数列:

[1, 2, 4, 8, 139, 278, 556, 1112, 18803, 37606, 75212, 150424, 2613617, 5227234, 10454468, 20908936]

約数ペア:

[(1, 20908936), (2, 10454468), (4, 5227234), (8, 2613617), (139, 150424), (278, 75212), (556, 37606), (1112, 18803)]