78561777

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{337}}^1\times {\mathrm{653}}^1$

素因数の和:1017

約数の個数: 32

約数和(自身を含む): 127325952

約数和(自身を除く): 48764175

約数列:

[1, 3, 7, 17, 21, 51, 119, 337, 357, 653, 1011, 1959, 2359, 4571, 5729, 7077, 11101, 13713, 17187, 33303, 40103, 77707, 120309, 220061, 233121, 660183, 1540427, 3741037, 4621281, 11223111, 26187259, 78561777]

約数ペア:

[(1, 78561777), (3, 26187259), (7, 11223111), (17, 4621281), (21, 3741037), (51, 1540427), (119, 660183), (337, 233121), (357, 220061), (653, 120309), (1011, 77707), (1959, 40103), (2359, 33303), (4571, 17187), (5729, 13713), (7077, 11101)]