19970418

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{256031}}^1$

素因数の和:256049

約数の個数: 16

約数和(自身を含む): 43013376

約数和(自身を除く): 23042958

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 256031, 512062, 768093, 1536186, 3328403, 6656806, 9985209, 19970418]

約数ペア:

[(1, 19970418), (2, 9985209), (3, 6656806), (6, 3328403), (13, 1536186), (26, 768093), (39, 512062), (78, 256031)]