217966595

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{4073}}^1$

素因数の和:4235

約数の個数: 32

約数和(自身を含む): 328527360

約数和(自身を除く): 110560765

約数列:

[1, 5, 7, 11, 35, 55, 77, 139, 385, 695, 973, 1529, 4073, 4865, 7645, 10703, 20365, 28511, 44803, 53515, 142555, 224015, 313621, 566147, 1568105, 2830735, 3963029, 6227617, 19815145, 31138085, 43593319, 217966595]

約数ペア:

[(1, 217966595), (5, 43593319), (7, 31138085), (11, 19815145), (35, 6227617), (55, 3963029), (77, 2830735), (139, 1568105), (385, 566147), (695, 313621), (973, 224015), (1529, 142555), (4073, 53515), (4865, 44803), (7645, 28511), (10703, 20365)]