991291389

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1581007}}^1$

素因数の和:1581040

約数の個数: 16

約数和(自身を含む): 1517767680

約数和(自身を除く): 526476291

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 1581007, 4743021, 17391077, 30039133, 52173231, 90117399, 330430463, 991291389]

約数ペア:

[(1, 991291389), (3, 330430463), (11, 90117399), (19, 52173231), (33, 30039133), (57, 17391077), (209, 4743021), (627, 1581007)]