20731396

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20011}}^1$

素因数の和:20059

約数の個数: 24

約数和(自身を含む): 42585536

約数和(自身を除く): 21854140

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 20011, 40022, 80044, 140077, 280154, 560308, 740407, 1480814, 2961628, 5182849, 10365698, 20731396]

約数ペア:

[(1, 20731396), (2, 10365698), (4, 5182849), (7, 2961628), (14, 1480814), (28, 740407), (37, 560308), (74, 280154), (148, 140077), (259, 80044), (518, 40022), (1036, 20011)]