21894068

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{33997}}^1$

素因数の和:34031

約数の個数: 24

約数和(自身を含む): 45693312

約数和(自身を除く): 23799244

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 33997, 67994, 135988, 237979, 475958, 781931, 951916, 1563862, 3127724, 5473517, 10947034, 21894068]

約数ペア:

[(1, 21894068), (2, 10947034), (4, 5473517), (7, 3127724), (14, 1563862), (23, 951916), (28, 781931), (46, 475958), (92, 237979), (161, 135988), (322, 67994), (644, 33997)]