981398469

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{135571}}^1$

素因数の和:135720

約数の個数: 16

約数和(自身を含む): 1388257280

約数和(自身を除く): 406858811

約数列:

[1, 3, 19, 57, 127, 381, 2413, 7239, 135571, 406713, 2575849, 7727547, 17217517, 51652551, 327132823, 981398469]

約数ペア:

[(1, 981398469), (3, 327132823), (19, 51652551), (57, 17217517), (127, 7727547), (381, 2575849), (2413, 406713), (7239, 135571)]