21000279816

素因数分解:

$2^3\times 3^2\times {\mathrm{291670553}}^1$

素因数の和:291670565

約数の個数: 24

約数和(自身を含む): 56875758030

約数和(自身を除く): 35875478214

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 291670553, 583341106, 875011659, 1166682212, 1750023318, 2333364424, 2625034977, 3500046636, 5250069954, 7000093272, 10500139908, 21000279816]

約数ペア:

[(1, 21000279816), (2, 10500139908), (3, 7000093272), (4, 5250069954), (6, 3500046636), (8, 2625034977), (9, 2333364424), (12, 1750023318), (18, 1166682212), (24, 875011659), (36, 583341106), (72, 291670553)]