289867221

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{90217}}^1$

素因数の和:90250

約数の個数: 32

約数和(自身を含む): 519655680

約数和(自身を除く): 229788459

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 119, 153, 189, 357, 459, 1071, 3213, 90217, 270651, 631519, 811953, 1533689, 1894557, 2435859, 4601067, 5683671, 10735823, 13803201, 17051013, 32207469, 41409603, 96622407, 289867221]

約数ペア:

[(1, 289867221), (3, 96622407), (7, 41409603), (9, 32207469), (17, 17051013), (21, 13803201), (27, 10735823), (51, 5683671), (63, 4601067), (119, 2435859), (153, 1894557), (189, 1533689), (357, 811953), (459, 631519), (1071, 270651), (3213, 90217)]