21456

素因数分解:

$2^4\times 3^2\times {\mathrm{149}}^1$

素因数の和:163

約数の個数: 30

約数和(自身を含む): 60450

約数和(自身を除く): 38994

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 149, 298, 447, 596, 894, 1192, 1341, 1788, 2384, 2682, 3576, 5364, 7152, 10728, 21456]

約数ペア:

[(1, 21456), (2, 10728), (3, 7152), (4, 5364), (6, 3576), (8, 2682), (9, 2384), (12, 1788), (16, 1341), (18, 1192), (24, 894), (36, 596), (48, 447), (72, 298), (144, 149)]