28112166

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{21997}}^1$

素因数の和:22076

約数の個数: 24

約数和(自身を含む): 61770384

約数和(自身を除く): 33658218

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 21997, 43994, 65991, 131982, 197973, 395946, 1561787, 3123574, 4685361, 9370722, 14056083, 28112166]

約数ペア:

[(1, 28112166), (2, 14056083), (3, 9370722), (6, 4685361), (9, 3123574), (18, 1561787), (71, 395946), (142, 197973), (213, 131982), (426, 65991), (639, 43994), (1278, 21997)]