21305824

素因数分解:

$2^5\times {\mathrm{809}}^1\times {\mathrm{823}}^1$

素因数の和:1642

約数の個数: 24

約数和(自身を含む): 42048720

約数和(自身を除く): 20742896

約数列:

[1, 2, 4, 8, 16, 32, 809, 823, 1618, 1646, 3236, 3292, 6472, 6584, 12944, 13168, 25888, 26336, 665807, 1331614, 2663228, 5326456, 10652912, 21305824]

約数ペア:

[(1, 21305824), (2, 10652912), (4, 5326456), (8, 2663228), (16, 1331614), (32, 665807), (809, 26336), (823, 25888), (1618, 13168), (1646, 12944), (3236, 6584), (3292, 6472)]