81396783

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{2707}}^1$

素因数の和:2983

約数の個数: 24

約数和(自身を含む): 127156848

約数和(自身を除く): 45760065

約数列:

[1, 3, 9, 13, 39, 117, 257, 771, 2313, 2707, 3341, 8121, 10023, 24363, 30069, 35191, 105573, 316719, 695699, 2087097, 6261291, 9044087, 27132261, 81396783]

約数ペア:

[(1, 81396783), (3, 27132261), (9, 9044087), (13, 6261291), (39, 2087097), (117, 695699), (257, 316719), (771, 105573), (2313, 35191), (2707, 30069), (3341, 24363), (8121, 10023)]