19720683

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2027}}^1$

素因数の和:2103

約数の個数: 24

約数和(自身を含む): 30371328

約数和(自身を除く): 10650645

約数列:

[1, 3, 9, 23, 47, 69, 141, 207, 423, 1081, 2027, 3243, 6081, 9729, 18243, 46621, 95269, 139863, 285807, 419589, 857421, 2191187, 6573561, 19720683]

約数ペア:

[(1, 19720683), (3, 6573561), (9, 2191187), (23, 857421), (47, 419589), (69, 285807), (141, 139863), (207, 95269), (423, 46621), (1081, 18243), (2027, 9729), (3243, 6081)]