201920859

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{78173}}^1$

素因数の和:78227

約数の個数: 24

約数和(自身を含む): 341464032

約数和(自身を除く): 139543173

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 78173, 234519, 547211, 703557, 1641633, 3205093, 4924899, 9615279, 22435651, 28845837, 67306953, 201920859]

約数ペア:

[(1, 201920859), (3, 67306953), (7, 28845837), (9, 22435651), (21, 9615279), (41, 4924899), (63, 3205093), (123, 1641633), (287, 703557), (369, 547211), (861, 234519), (2583, 78173)]