18757986

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^3\times {\mathrm{1423}}^1$

素因数の和:1467

約数の個数: 32

約数和(自身を含む): 40669440

約数和(自身を除く): 21911454

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 169, 338, 507, 1014, 1423, 2197, 2846, 4269, 4394, 6591, 8538, 13182, 18499, 36998, 55497, 110994, 240487, 480974, 721461, 1442922, 3126331, 6252662, 9378993, 18757986]

約数ペア:

[(1, 18757986), (2, 9378993), (3, 6252662), (6, 3126331), (13, 1442922), (26, 721461), (39, 480974), (78, 240487), (169, 110994), (338, 55497), (507, 36998), (1014, 18499), (1423, 13182), (2197, 8538), (2846, 6591), (4269, 4394)]