21407236

素因数分解:

$2^2\times {\mathrm{31}}^2\times {\mathrm{5569}}^1$

素因数の和:5635

約数の個数: 18

約数和(自身を含む): 38717070

約数和(自身を除く): 17309834

約数列:

[1, 2, 4, 31, 62, 124, 961, 1922, 3844, 5569, 11138, 22276, 172639, 345278, 690556, 5351809, 10703618, 21407236]

約数ペア:

[(1, 21407236), (2, 10703618), (4, 5351809), (31, 690556), (62, 345278), (124, 172639), (961, 22276), (1922, 11138), (3844, 5569)]