18939459

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{503}}^1$

素因数の和:687

約数の個数: 32

約数和(自身を含む): 31739904

約数和(自身を除く): 12800445

約数列:

[1, 3, 7, 11, 21, 33, 77, 163, 231, 489, 503, 1141, 1509, 1793, 3423, 3521, 5379, 5533, 10563, 12551, 16599, 37653, 38731, 81989, 116193, 245967, 573923, 901879, 1721769, 2705637, 6313153, 18939459]

約数ペア:

[(1, 18939459), (3, 6313153), (7, 2705637), (11, 1721769), (21, 901879), (33, 573923), (77, 245967), (163, 116193), (231, 81989), (489, 38731), (503, 37653), (1141, 16599), (1509, 12551), (1793, 10563), (3423, 5533), (3521, 5379)]