21684632

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{199}}^1\times {\mathrm{257}}^1$

素因数の和:515

約数の個数: 32

約数和(自身を含む): 41796000

約数和(自身を除く): 20111368

約数列:

[1, 2, 4, 8, 53, 106, 199, 212, 257, 398, 424, 514, 796, 1028, 1592, 2056, 10547, 13621, 21094, 27242, 42188, 51143, 54484, 84376, 102286, 108968, 204572, 409144, 2710579, 5421158, 10842316, 21684632]

約数ペア:

[(1, 21684632), (2, 10842316), (4, 5421158), (8, 2710579), (53, 409144), (106, 204572), (199, 108968), (212, 102286), (257, 84376), (398, 54484), (424, 51143), (514, 42188), (796, 27242), (1028, 21094), (1592, 13621), (2056, 10547)]