21380712

素因数分解:

$2^3\times 3^1\times {\mathrm{890863}}^1$

素因数の和:890872

約数の個数: 16

約数和(自身を含む): 53451840

約数和(自身を除く): 32071128

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 890863, 1781726, 2672589, 3563452, 5345178, 7126904, 10690356, 21380712]

約数ペア:

[(1, 21380712), (2, 10690356), (3, 7126904), (4, 5345178), (6, 3563452), (8, 2672589), (12, 1781726), (24, 890863)]