21991233

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{2593}}^1$

素因数の和:2864

約数の個数: 16

約数和(自身を含む): 32124096

約数和(自身を除く): 10132863

約数列:

[1, 3, 11, 33, 257, 771, 2593, 2827, 7779, 8481, 28523, 85569, 666401, 1999203, 7330411, 21991233]

約数ペア:

[(1, 21991233), (3, 7330411), (11, 1999203), (33, 666401), (257, 85569), (771, 28523), (2593, 8481), (2827, 7779)]