20899377

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{3851}}^1$

素因数の和:3930

約数の個数: 20

約数和(自身を含む): 31694256

約数和(自身を除く): 10794879

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 3851, 5427, 11553, 34659, 103977, 258017, 311931, 774051, 2322153, 6966459, 20899377]

約数ペア:

[(1, 20899377), (3, 6966459), (9, 2322153), (27, 774051), (67, 311931), (81, 258017), (201, 103977), (603, 34659), (1809, 11553), (3851, 5427)]