278204289

素因数分解:

$3^1\times {\mathrm{11}}^3\times {\mathrm{19}}^2\times {\mathrm{193}}^1$

素因数の和:267

約数の個数: 48

約数和(自身を含む): 432840384

約数和(自身を除く): 154636095

約数列:

[1, 3, 11, 19, 33, 57, 121, 193, 209, 361, 363, 579, 627, 1083, 1331, 2123, 2299, 3667, 3971, 3993, 6369, 6897, 11001, 11913, 23353, 25289, 40337, 43681, 69673, 70059, 75867, 121011, 131043, 209019, 256883, 443707, 480491, 766403, 770649, 1331121, 1441473, 2299209, 4880777, 8430433, 14642331, 25291299, 92734763, 278204289]

約数ペア:

[(1, 278204289), (3, 92734763), (11, 25291299), (19, 14642331), (33, 8430433), (57, 4880777), (121, 2299209), (193, 1441473), (209, 1331121), (361, 770649), (363, 766403), (579, 480491), (627, 443707), (1083, 256883), (1331, 209019), (2123, 131043), (2299, 121011), (3667, 75867), (3971, 70059), (3993, 69673), (6369, 43681), (6897, 40337), (11001, 25289), (11913, 23353)]