19729818

素因数分解:

$2^1\times 3^4\times {\mathrm{121789}}^1$

素因数の和:121803

約数の個数: 20

約数和(自身を含む): 44209770

約数和(自身を除く): 24479952

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 121789, 243578, 365367, 730734, 1096101, 2192202, 3288303, 6576606, 9864909, 19729818]

約数ペア:

[(1, 19729818), (2, 9864909), (3, 6576606), (6, 3288303), (9, 2192202), (18, 1096101), (27, 730734), (54, 365367), (81, 243578), (162, 121789)]