217256158

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{661}}^1\times {\mathrm{1381}}^1$

素因数の和:2068

約数の個数: 32

約数和(自身を含む): 395229888

約数和(自身を除く): 177973730

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 661, 1322, 1381, 2762, 4627, 9254, 9667, 11237, 19334, 22474, 23477, 46954, 78659, 157318, 164339, 328678, 912841, 1825682, 6389887, 12779774, 15518297, 31036594, 108628079, 217256158]

約数ペア:

[(1, 217256158), (2, 108628079), (7, 31036594), (14, 15518297), (17, 12779774), (34, 6389887), (119, 1825682), (238, 912841), (661, 328678), (1322, 164339), (1381, 157318), (2762, 78659), (4627, 46954), (9254, 23477), (9667, 22474), (11237, 19334)]