18940418

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{9733}}^1$

素因数の和:9881

約数の個数: 16

約数和(自身を含む): 32706240

約数和(自身を除く): 13765822

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 9733, 19466, 68131, 136262, 1352887, 2705774, 9470209, 18940418]

約数ペア:

[(1, 18940418), (2, 9470209), (7, 2705774), (14, 1352887), (139, 136262), (278, 68131), (973, 19466), (1946, 9733)]