20493456

素因数分解:

$2^4\times 3^1\times {\mathrm{43}}^1\times {\mathrm{9929}}^1$

素因数の和:9983

約数の個数: 40

約数和(自身を含む): 54178080

約数和(自身を除く): 33684624

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 43, 48, 86, 129, 172, 258, 344, 516, 688, 1032, 2064, 9929, 19858, 29787, 39716, 59574, 79432, 119148, 158864, 238296, 426947, 476592, 853894, 1280841, 1707788, 2561682, 3415576, 5123364, 6831152, 10246728, 20493456]

約数ペア:

[(1, 20493456), (2, 10246728), (3, 6831152), (4, 5123364), (6, 3415576), (8, 2561682), (12, 1707788), (16, 1280841), (24, 853894), (43, 476592), (48, 426947), (86, 238296), (129, 158864), (172, 119148), (258, 79432), (344, 59574), (516, 39716), (688, 29787), (1032, 19858), (2064, 9929)]