18997686

素因数分解:

$2^1\times 3^3\times {\mathrm{139}}^1\times {\mathrm{2531}}^1$

素因数の和:2681

約数の個数: 32

約数和(自身を含む): 42537600

約数和(自身を除く): 23539914

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 139, 278, 417, 834, 1251, 2502, 2531, 3753, 5062, 7506, 7593, 15186, 22779, 45558, 68337, 136674, 351809, 703618, 1055427, 2110854, 3166281, 6332562, 9498843, 18997686]

約数ペア:

[(1, 18997686), (2, 9498843), (3, 6332562), (6, 3166281), (9, 2110854), (18, 1055427), (27, 703618), (54, 351809), (139, 136674), (278, 68337), (417, 45558), (834, 22779), (1251, 15186), (2502, 7593), (2531, 7506), (3753, 5062)]