201916981

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{7103}}^1$

素因数の和:7272

約数の個数: 16

約数和(自身を含む): 240058368

約数和(自身を除く): 38141387

約数列:

[1, 7, 31, 131, 217, 917, 4061, 7103, 28427, 49721, 220193, 930493, 1541351, 6513451, 28845283, 201916981]

約数ペア:

[(1, 201916981), (7, 28845283), (31, 6513451), (131, 1541351), (217, 930493), (917, 220193), (4061, 49721), (7103, 28427)]