18804519903

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2111}}^1\times {\mathrm{3217}}^1$

素因数の和:5415

約数の個数: 32

約数和(自身を含む): 27403149312

約数和(自身を除く): 8598629409

約数列:

[1, 3, 13, 39, 71, 213, 923, 2111, 2769, 3217, 6333, 9651, 27443, 41821, 82329, 125463, 149881, 228407, 449643, 685221, 1948453, 2969291, 5845359, 6791087, 8907873, 20373261, 88284131, 264852393, 482167177, 1446501531, 6268173301, 18804519903]

約数ペア:

[(1, 18804519903), (3, 6268173301), (13, 1446501531), (39, 482167177), (71, 264852393), (213, 88284131), (923, 20373261), (2111, 8907873), (2769, 6791087), (3217, 5845359), (6333, 2969291), (9651, 1948453), (27443, 685221), (41821, 449643), (82329, 228407), (125463, 149881)]