21868218

素因数分解:

$2^1\times 3^4\times {\mathrm{134989}}^1$

素因数の和:135003

約数の個数: 20

約数和(自身を含む): 49001370

約数和(自身を除く): 27133152

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 134989, 269978, 404967, 809934, 1214901, 2429802, 3644703, 7289406, 10934109, 21868218]

約数ペア:

[(1, 21868218), (2, 10934109), (3, 7289406), (6, 3644703), (9, 2429802), (18, 1214901), (27, 809934), (54, 404967), (81, 269978), (162, 134989)]