20028261

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1879}}^1$

素因数の和:1929

約数の個数: 32

約数和(自身を含む): 32486400

約数和(自身を除く): 12458139

約数列:

[1, 3, 11, 17, 19, 33, 51, 57, 187, 209, 323, 561, 627, 969, 1879, 3553, 5637, 10659, 20669, 31943, 35701, 62007, 95829, 107103, 351373, 392711, 606917, 1054119, 1178133, 1820751, 6676087, 20028261]

約数ペア:

[(1, 20028261), (3, 6676087), (11, 1820751), (17, 1178133), (19, 1054119), (33, 606917), (51, 392711), (57, 351373), (187, 107103), (209, 95829), (323, 62007), (561, 35701), (627, 31943), (969, 20669), (1879, 10659), (3553, 5637)]