978188827

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{643}}^1\times {\mathrm{859}}^1$

素因数の和:1543

約数の個数: 32

約数和(自身を含む): 1276047360

約数和(自身を除く): 297858533

約数列:

[1, 7, 11, 23, 77, 161, 253, 643, 859, 1771, 4501, 6013, 7073, 9449, 14789, 19757, 49511, 66143, 103523, 138299, 162679, 217327, 552337, 1138753, 1521289, 3866359, 6075707, 12703751, 42529949, 88926257, 139741261, 978188827]

約数ペア:

[(1, 978188827), (7, 139741261), (11, 88926257), (23, 42529949), (77, 12703751), (161, 6075707), (253, 3866359), (643, 1521289), (859, 1138753), (1771, 552337), (4501, 217327), (6013, 162679), (7073, 138299), (9449, 103523), (14789, 66143), (19757, 49511)]