21630879

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{1259}}^1$

素因数の和:1371

約数の個数: 24

約数和(自身を含む): 33022080

約数和(自身を除く): 11391201

約数列:

[1, 3, 9, 23, 69, 83, 207, 249, 747, 1259, 1909, 3777, 5727, 11331, 17181, 28957, 86871, 104497, 260613, 313491, 940473, 2403431, 7210293, 21630879]

約数ペア:

[(1, 21630879), (3, 7210293), (9, 2403431), (23, 940473), (69, 313491), (83, 260613), (207, 104497), (249, 86871), (747, 28957), (1259, 17181), (1909, 11331), (3777, 5727)]