21381802

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43283}}^1$

素因数の和:43317

約数の個数: 16

約数和(自身を含む): 36358560

約数和(自身を除く): 14976758

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 43283, 86566, 562679, 822377, 1125358, 1644754, 10690901, 21381802]

約数ペア:

[(1, 21381802), (2, 10690901), (13, 1644754), (19, 1125358), (26, 822377), (38, 562679), (247, 86566), (494, 43283)]