20971575

素因数分解:

$3^3\times 5^2\times {\mathrm{31069}}^1$

素因数の和:31088

約数の個数: 24

約数和(自身を含む): 38526800

約数和(自身を除く): 17555225

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 31069, 93207, 155345, 279621, 466035, 776725, 838863, 1398105, 2330175, 4194315, 6990525, 20971575]

約数ペア:

[(1, 20971575), (3, 6990525), (5, 4194315), (9, 2330175), (15, 1398105), (25, 838863), (27, 776725), (45, 466035), (75, 279621), (135, 155345), (225, 93207), (675, 31069)]