19886769

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2447}}^1$

素因数の和:2506

約数の個数: 32

約数和(自身を含む): 34467840

約数和(自身を除く): 14581071

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 129, 189, 301, 387, 903, 1161, 2447, 2709, 7341, 8127, 17129, 22023, 51387, 66069, 105221, 154161, 315663, 462483, 736547, 946989, 2209641, 2840967, 6628923, 19886769]

約数ペア:

[(1, 19886769), (3, 6628923), (7, 2840967), (9, 2209641), (21, 946989), (27, 736547), (43, 462483), (63, 315663), (129, 154161), (189, 105221), (301, 66069), (387, 51387), (903, 22023), (1161, 17129), (2447, 8127), (2709, 7341)]