21348866

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{138629}}^1$

素因数の和:138649

約数の個数: 16

約数和(自身を含む): 39925440

約数和(自身を除く): 18576574

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 138629, 277258, 970403, 1524919, 1940806, 3049838, 10674433, 21348866]

約数ペア:

[(1, 21348866), (2, 10674433), (7, 3049838), (11, 1940806), (14, 1524919), (22, 970403), (77, 277258), (154, 138629)]