78690081

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{571}}^1\times {\mathrm{647}}^1$

素因数の和:1292

約数の個数: 16

約数和(自身を含む): 106748928

約数和(自身を除く): 28058847

約数列:

[1, 3, 71, 213, 571, 647, 1713, 1941, 40541, 45937, 121623, 137811, 369437, 1108311, 26230027, 78690081]

約数ペア:

[(1, 78690081), (3, 26230027), (71, 1108311), (213, 369437), (571, 137811), (647, 121623), (1713, 45937), (1941, 40541)]