20512578261

素因数分解:

$3^1\times 7^1\times {\mathrm{12853}}^1\times {\mathrm{75997}}^1$

素因数の和:88860

約数の個数: 16

約数和(自身を含む): 31260105344

約数和(自身を除く): 10747527083

約数列:

[1, 3, 7, 21, 12853, 38559, 75997, 89971, 227991, 269913, 531979, 1595937, 976789441, 2930368323, 6837526087, 20512578261]

約数ペア:

[(1, 20512578261), (3, 6837526087), (7, 2930368323), (21, 976789441), (12853, 1595937), (38559, 531979), (75997, 269913), (89971, 227991)]