18768789

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8443}}^1$

素因数の和:8481

約数の個数: 24

約数和(自身を含む): 30736160

約数和(自身を除く): 11967371

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 8443, 25329, 75987, 109759, 160417, 329277, 481251, 987831, 1443753, 2085421, 6256263, 18768789]

約数ペア:

[(1, 18768789), (3, 6256263), (9, 2085421), (13, 1443753), (19, 987831), (39, 481251), (57, 329277), (117, 160417), (171, 109759), (247, 75987), (741, 25329), (2223, 8443)]