21692008

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{208577}}^1$

素因数の和:208596

約数の個数: 16

約数和(自身を含む): 43801380

約数和(自身を除く): 22109372

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 208577, 417154, 834308, 1668616, 2711501, 5423002, 10846004, 21692008]

約数ペア:

[(1, 21692008), (2, 10846004), (4, 5423002), (8, 2711501), (13, 1668616), (26, 834308), (52, 417154), (104, 208577)]