19993149

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1181}}^1$

素因数の和:1223

約数の個数: 40

約数和(自身を含む): 34325280

約数和(自身を除く): 14332131

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 81, 99, 171, 209, 297, 513, 627, 891, 1181, 1539, 1881, 3543, 5643, 10629, 12991, 16929, 22439, 31887, 38973, 67317, 95661, 116919, 201951, 246829, 350757, 605853, 740487, 1052271, 1817559, 2221461, 6664383, 19993149]

約数ペア:

[(1, 19993149), (3, 6664383), (9, 2221461), (11, 1817559), (19, 1052271), (27, 740487), (33, 605853), (57, 350757), (81, 246829), (99, 201951), (171, 116919), (209, 95661), (297, 67317), (513, 38973), (627, 31887), (891, 22439), (1181, 16929), (1539, 12991), (1881, 10629), (3543, 5643)]