19493319

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{1103}}^1$

素因数の和:1286

約数の個数: 16

約数和(自身を含む): 26813952

約数和(自身を除く): 7320633

約数列:

[1, 3, 43, 129, 137, 411, 1103, 3309, 5891, 17673, 47429, 142287, 151111, 453333, 6497773, 19493319]

約数ペア:

[(1, 19493319), (3, 6497773), (43, 453333), (129, 151111), (137, 142287), (411, 47429), (1103, 17673), (3309, 5891)]