21638343

素因数分解:

$3^1\times {\mathrm{103}}^1\times {\mathrm{239}}^1\times {\mathrm{293}}^1$

素因数の和:638

約数の個数: 16

約数和(自身を含む): 29352960

約数和(自身を除く): 7714617

約数列:

[1, 3, 103, 239, 293, 309, 717, 879, 24617, 30179, 70027, 73851, 90537, 210081, 7212781, 21638343]

約数ペア:

[(1, 21638343), (3, 7212781), (103, 210081), (239, 90537), (293, 73851), (309, 70027), (717, 30179), (879, 24617)]