81788166

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{63997}}^1$

素因数の和:64076

約数の個数: 24

約数和(自身を含む): 179706384

約数和(自身を除く): 97918218

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 63997, 127994, 191991, 383982, 575973, 1151946, 4543787, 9087574, 13631361, 27262722, 40894083, 81788166]

約数ペア:

[(1, 81788166), (2, 40894083), (3, 27262722), (6, 13631361), (9, 9087574), (18, 4543787), (71, 1151946), (142, 575973), (213, 383982), (426, 191991), (639, 127994), (1278, 63997)]