208989921

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{343169}}^1$

素因数の和:343208

約数の個数: 16

約数和(自身を含む): 329443200

約数和(自身を除く): 120453279

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 343169, 1029507, 2402183, 7206549, 9951901, 29855703, 69663307, 208989921]

約数ペア:

[(1, 208989921), (3, 69663307), (7, 29855703), (21, 9951901), (29, 7206549), (87, 2402183), (203, 1029507), (609, 343169)]