20521656

素因数分解:

$2^3\times 3^2\times {\mathrm{285023}}^1$

素因数の和:285035

約数の個数: 24

約数和(自身を含む): 55579680

約数和(自身を除く): 35058024

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 285023, 570046, 855069, 1140092, 1710138, 2280184, 2565207, 3420276, 5130414, 6840552, 10260828, 20521656]

約数ペア:

[(1, 20521656), (2, 10260828), (3, 6840552), (4, 5130414), (6, 3420276), (8, 2565207), (9, 2280184), (12, 1710138), (18, 1140092), (24, 855069), (36, 570046), (72, 285023)]