21288276

素因数分解:

$2^2\times 3^2\times {\mathrm{591341}}^1$

素因数の和:591351

約数の個数: 18

約数和(自身を含む): 53812122

約数和(自身を除く): 32523846

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 591341, 1182682, 1774023, 2365364, 3548046, 5322069, 7096092, 10644138, 21288276]

約数ペア:

[(1, 21288276), (2, 10644138), (3, 7096092), (4, 5322069), (6, 3548046), (9, 2365364), (12, 1774023), (18, 1182682), (36, 591341)]