21320226

素因数分解:

$2^1\times 3^3\times {\mathrm{394819}}^1$

素因数の和:394830

約数の個数: 16

約数和(自身を含む): 47378400

約数和(自身を除く): 26058174

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 394819, 789638, 1184457, 2368914, 3553371, 7106742, 10660113, 21320226]

約数ペア:

[(1, 21320226), (2, 10660113), (3, 7106742), (6, 3553371), (9, 2368914), (18, 1184457), (27, 789638), (54, 394819)]