217996867

素因数分解:

${\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{653}}^1$

素因数の和:795

約数の個数: 24

約数和(自身を含む): 250508160

約数和(自身を除く): 32511293

約数列:

[1, 11, 31, 89, 121, 341, 653, 979, 2759, 3751, 7183, 10769, 20243, 30349, 58117, 79013, 222673, 333839, 639287, 1801627, 2449403, 7032157, 19817897, 217996867]

約数ペア:

[(1, 217996867), (11, 19817897), (31, 7032157), (89, 2449403), (121, 1801627), (341, 639287), (653, 333839), (979, 222673), (2759, 79013), (3751, 58117), (7183, 30349), (10769, 20243)]