21067984

素因数分解:

$2^4\times 7^1\times {\mathrm{188107}}^1$

素因数の和:188122

約数の個数: 20

約数和(自身を含む): 46650784

約数和(自身を除く): 25582800

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 188107, 376214, 752428, 1316749, 1504856, 2633498, 3009712, 5266996, 10533992, 21067984]

約数ペア:

[(1, 21067984), (2, 10533992), (4, 5266996), (7, 3009712), (8, 2633498), (14, 1504856), (16, 1316749), (28, 752428), (56, 376214), (112, 188107)]