30686481

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{4729}}^1$

素因数の和:4845

約数の個数: 24

約数和(自身を含む): 51159680

約数和(自身を除く): 20473199

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 4729, 6489, 14187, 33103, 42561, 99309, 297927, 487087, 1461261, 3409609, 4383783, 10228827, 30686481]

約数ペア:

[(1, 30686481), (3, 10228827), (7, 4383783), (9, 3409609), (21, 1461261), (63, 487087), (103, 297927), (309, 99309), (721, 42561), (927, 33103), (2163, 14187), (4729, 6489)]