21855218

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{141917}}^1$

素因数の和:141937

約数の個数: 16

約数和(自身を含む): 40872384

約数和(自身を除く): 19017166

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 141917, 283834, 993419, 1561087, 1986838, 3122174, 10927609, 21855218]

約数ペア:

[(1, 21855218), (2, 10927609), (7, 3122174), (11, 1986838), (14, 1561087), (22, 993419), (77, 283834), (154, 141917)]