217738081

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{761}}^1$

素因数の和:865

約数の個数: 24

約数和(自身を含む): 257312160

約数和(自身を除く): 39574079

約数列:

[1, 11, 19, 37, 209, 407, 703, 761, 1369, 7733, 8371, 14459, 15059, 26011, 28157, 159049, 286121, 309727, 534983, 1041809, 5884813, 11459899, 19794371, 217738081]

約数ペア:

[(1, 217738081), (11, 19794371), (19, 11459899), (37, 5884813), (209, 1041809), (407, 534983), (703, 309727), (761, 286121), (1369, 159049), (7733, 28157), (8371, 26011), (14459, 15059)]