20509704

素因数分解:

$2^3\times 3^2\times {\mathrm{284857}}^1$

素因数の和:284869

約数の個数: 24

約数和(自身を含む): 55547310

約数和(自身を除く): 35037606

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 284857, 569714, 854571, 1139428, 1709142, 2278856, 2563713, 3418284, 5127426, 6836568, 10254852, 20509704]

約数ペア:

[(1, 20509704), (2, 10254852), (3, 6836568), (4, 5127426), (6, 3418284), (8, 2563713), (9, 2278856), (12, 1709142), (18, 1139428), (24, 854571), (36, 569714), (72, 284857)]