19662321

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{49279}}^1$

素因数の和:49308

約数の個数: 16

約数和(自身を含む): 31539200

約数和(自身を除く): 11876879

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 49279, 147837, 344953, 936301, 1034859, 2808903, 6554107, 19662321]

約数ペア:

[(1, 19662321), (3, 6554107), (7, 2808903), (19, 1034859), (21, 936301), (57, 344953), (133, 147837), (399, 49279)]