28811913

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^2\times {\mathrm{263}}^1$

素因数の和:385

約数の個数: 24

約数和(自身を含む): 42326592

約数和(自身を除く): 13514679

約数列:

[1, 3, 13, 39, 53, 159, 263, 689, 789, 2067, 2809, 3419, 8427, 10257, 13939, 36517, 41817, 109551, 181207, 543621, 738767, 2216301, 9603971, 28811913]

約数ペア:

[(1, 28811913), (3, 9603971), (13, 2216301), (39, 738767), (53, 543621), (159, 181207), (263, 109551), (689, 41817), (789, 36517), (2067, 13939), (2809, 10257), (3419, 8427)]