28213367049

素因数分解:

$3^2\times 7^2\times {\mathrm{63975889}}^1$

素因数の和:63975909

約数の個数: 18

約数和(自身を含む): 47406134490

約数和(自身を除く): 19192767441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 63975889, 191927667, 447831223, 575783001, 1343493669, 3134818561, 4030481007, 9404455683, 28213367049]

約数ペア:

[(1, 28213367049), (3, 9404455683), (7, 4030481007), (9, 3134818561), (21, 1343493669), (49, 575783001), (63, 447831223), (147, 191927667), (441, 63975889)]