12866721

素因数分解:

$3^1\times 7^1\times {\mathrm{631}}^1\times {\mathrm{971}}^1$

素因数の和:1612

約数の個数: 16

約数和(自身を含む): 19657728

約数和(自身を除く): 6791007

約数列:

[1, 3, 7, 21, 631, 971, 1893, 2913, 4417, 6797, 13251, 20391, 612701, 1838103, 4288907, 12866721]

約数ペア:

[(1, 12866721), (3, 4288907), (7, 1838103), (21, 612701), (631, 20391), (971, 13251), (1893, 6797), (2913, 4417)]