19809393

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1\times {\mathrm{997}}^1$

素因数の和:1216

約数の個数: 16

約数和(自身を含む): 27305280

約数和(自身を除く): 7495887

約数列:

[1, 3, 37, 111, 179, 537, 997, 2991, 6623, 19869, 36889, 110667, 178463, 535389, 6603131, 19809393]

約数ペア:

[(1, 19809393), (3, 6603131), (37, 535389), (111, 178463), (179, 110667), (537, 36889), (997, 19869), (2991, 6623)]