18699831

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1$

素因数の和:455

約数の個数: 24

約数和(自身を含む): 27799200

約数和(自身を除く): 9099369

約数列:

[1, 3, 9, 53, 159, 197, 199, 477, 591, 597, 1773, 1791, 10441, 10547, 31323, 31641, 39203, 93969, 94923, 117609, 352827, 2077759, 6233277, 18699831]

約数ペア:

[(1, 18699831), (3, 6233277), (9, 2077759), (53, 352827), (159, 117609), (197, 94923), (199, 93969), (477, 39203), (591, 31641), (597, 31323), (1773, 10547), (1791, 10441)]