28497994

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1$

素因数の和:454

約数の個数: 32

約数和(自身を含む): 50284800

約数和(自身を除く): 21786806

約数列:

[1, 2, 7, 14, 53, 106, 193, 199, 371, 386, 398, 742, 1351, 1393, 2702, 2786, 10229, 10547, 20458, 21094, 38407, 71603, 73829, 76814, 143206, 147658, 268849, 537698, 2035571, 4071142, 14248997, 28497994]

約数ペア:

[(1, 28497994), (2, 14248997), (7, 4071142), (14, 2035571), (53, 537698), (106, 268849), (193, 147658), (199, 143206), (371, 76814), (386, 73829), (398, 71603), (742, 38407), (1351, 21094), (1393, 20458), (2702, 10547), (2786, 10229)]