13151421

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1999}}^1$

素因数の和:2065

約数の個数: 24

約数和(自身を含む): 20592000

約数和(自身を除く): 7440579

約数列:

[1, 3, 9, 17, 43, 51, 129, 153, 387, 731, 1999, 2193, 5997, 6579, 17991, 33983, 85957, 101949, 257871, 305847, 773613, 1461269, 4383807, 13151421]

約数ペア:

[(1, 13151421), (3, 4383807), (9, 1461269), (17, 773613), (43, 305847), (51, 257871), (129, 101949), (153, 85957), (387, 33983), (731, 17991), (1999, 6579), (2193, 5997)]