21387984306

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{274204927}}^1$

素因数の和:274204945

約数の個数: 16

約数和(自身を含む): 46066427904

約数和(自身を除く): 24678443598

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 274204927, 548409854, 822614781, 1645229562, 3564664051, 7129328102, 10693992153, 21387984306]

約数ペア:

[(1, 21387984306), (2, 10693992153), (3, 7129328102), (6, 3564664051), (13, 1645229562), (26, 822614781), (39, 548409854), (78, 274204927)]