81240981

素因数分解:

$3^1\times {\mathrm{83}}^1\times {\mathrm{509}}^1\times {\mathrm{641}}^1$

素因数の和:1236

約数の個数: 16

約数和(自身を含む): 110013120

約数和(自身を除く): 28772139

約数列:

[1, 3, 83, 249, 509, 641, 1527, 1923, 42247, 53203, 126741, 159609, 326269, 978807, 27080327, 81240981]

約数ペア:

[(1, 81240981), (3, 27080327), (83, 978807), (249, 326269), (509, 159609), (641, 126741), (1527, 53203), (1923, 42247)]