81018147

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{10687}}^1$

素因数の和:10735

約数の個数: 24

約数和(自身を含む): 130308096

約数和(自身を除く): 49289949

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2527, 7581, 10687, 32061, 74809, 203053, 224427, 609159, 1421371, 3858007, 4264113, 11574021, 27006049, 81018147]

約数ペア:

[(1, 81018147), (3, 27006049), (7, 11574021), (19, 4264113), (21, 3858007), (57, 1421371), (133, 609159), (361, 224427), (399, 203053), (1083, 74809), (2527, 32061), (7581, 10687)]