21000222

素因数分解:

$2^1\times 3^4\times {\mathrm{129631}}^1$

素因数の和:129645

約数の個数: 20

約数和(自身を含む): 47056416

約数和(自身を除く): 26056194

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 129631, 259262, 388893, 777786, 1166679, 2333358, 3500037, 7000074, 10500111, 21000222]

約数ペア:

[(1, 21000222), (2, 10500111), (3, 7000074), (6, 3500037), (9, 2333358), (18, 1166679), (27, 777786), (54, 388893), (81, 259262), (162, 129631)]