20147589

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{881}}^1$

素因数の和:919

約数の個数: 48

約数和(自身を含む): 37537920

約数和(自身を除く): 17390331

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 121, 189, 231, 297, 363, 693, 847, 881, 1089, 2079, 2541, 2643, 3267, 6167, 7623, 7929, 9691, 18501, 22869, 23787, 29073, 55503, 67837, 87219, 106601, 166509, 203511, 261657, 319803, 610533, 746207, 959409, 1831599, 2238621, 2878227, 6715863, 20147589]

約数ペア:

[(1, 20147589), (3, 6715863), (7, 2878227), (9, 2238621), (11, 1831599), (21, 959409), (27, 746207), (33, 610533), (63, 319803), (77, 261657), (99, 203511), (121, 166509), (189, 106601), (231, 87219), (297, 67837), (363, 55503), (693, 29073), (847, 23787), (881, 22869), (1089, 18501), (2079, 9691), (2541, 7929), (2643, 7623), (3267, 6167)]