247393395

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{289349}}^1$

素因数の和:289379

約数の個数: 24

約数和(自身を含む): 451386000

約数和(自身を除く): 203992605

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 289349, 868047, 1446745, 2604141, 4340235, 5497631, 13020705, 16492893, 27488155, 49478679, 82464465, 247393395]

約数ペア:

[(1, 247393395), (3, 82464465), (5, 49478679), (9, 27488155), (15, 16492893), (19, 13020705), (45, 5497631), (57, 4340235), (95, 2604141), (171, 1446745), (285, 868047), (855, 289349)]