208049877

素因数分解:

$3^4\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2801}}^1$

素因数の和:2951

約数の個数: 40

約数和(自身を含む): 358028352

約数和(自身を除く): 149978475

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 131, 189, 393, 567, 917, 1179, 2751, 2801, 3537, 8253, 8403, 10611, 19607, 24759, 25209, 58821, 74277, 75627, 176463, 226881, 366931, 529389, 1100793, 1588167, 2568517, 3302379, 7705551, 9907137, 23116653, 29721411, 69349959, 208049877]

約数ペア:

[(1, 208049877), (3, 69349959), (7, 29721411), (9, 23116653), (21, 9907137), (27, 7705551), (63, 3302379), (81, 2568517), (131, 1588167), (189, 1100793), (393, 529389), (567, 366931), (917, 226881), (1179, 176463), (2751, 75627), (2801, 74277), (3537, 58821), (8253, 25209), (8403, 24759), (10611, 19607)]