51911721

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{81239}}^1$

素因数の和:81316

約数の個数: 12

約数和(自身を含む): 76040640

約数和(自身を除く): 24128919

約数列:

[1, 3, 9, 71, 213, 639, 81239, 243717, 731151, 5767969, 17303907, 51911721]

約数ペア:

[(1, 51911721), (3, 17303907), (9, 5767969), (71, 731151), (213, 243717), (639, 81239)]