21789174

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{330139}}^1$

素因数の和:330155

約数の個数: 16

約数和(自身を含む): 47540160

約数和(自身を除く): 25750986

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 330139, 660278, 990417, 1980834, 3631529, 7263058, 10894587, 21789174]

約数ペア:

[(1, 21789174), (2, 10894587), (3, 7263058), (6, 3631529), (11, 1980834), (22, 990417), (33, 660278), (66, 330139)]