20010159

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{613}}^1$

素因数の和:669

約数の個数: 40

約数和(自身を含む): 33283712

約数和(自身を除く): 13273553

約数列:

[1, 3, 9, 13, 27, 31, 39, 81, 93, 117, 279, 351, 403, 613, 837, 1053, 1209, 1839, 2511, 3627, 5517, 7969, 10881, 16551, 19003, 23907, 32643, 49653, 57009, 71721, 171027, 215163, 247039, 513081, 645489, 741117, 1539243, 2223351, 6670053, 20010159]

約数ペア:

[(1, 20010159), (3, 6670053), (9, 2223351), (13, 1539243), (27, 741117), (31, 645489), (39, 513081), (81, 247039), (93, 215163), (117, 171027), (279, 71721), (351, 57009), (403, 49653), (613, 32643), (837, 23907), (1053, 19003), (1209, 16551), (1839, 10881), (2511, 7969), (3627, 5517)]