18921789

素因数分解:

$3^3\times {\mathrm{313}}^1\times {\mathrm{2239}}^1$

素因数の和:2561

約数の個数: 16

約数和(自身を含む): 28134400

約数和(自身を除く): 9212611

約数列:

[1, 3, 9, 27, 313, 939, 2239, 2817, 6717, 8451, 20151, 60453, 700807, 2102421, 6307263, 18921789]

約数ペア:

[(1, 18921789), (3, 6307263), (9, 2102421), (27, 700807), (313, 60453), (939, 20151), (2239, 8451), (2817, 6717)]