18821466

素因数分解:

$2^1\times 3^2\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:351

約数の個数: 48

約数和(自身を含む): 42162120

約数和(自身を除く): 23340654

約数列:

[1, 2, 3, 6, 9, 18, 53, 106, 109, 159, 181, 218, 318, 327, 362, 477, 543, 654, 954, 981, 1086, 1629, 1962, 3258, 5777, 9593, 11554, 17331, 19186, 19729, 28779, 34662, 39458, 51993, 57558, 59187, 86337, 103986, 118374, 172674, 177561, 355122, 1045637, 2091274, 3136911, 6273822, 9410733, 18821466]

約数ペア:

[(1, 18821466), (2, 9410733), (3, 6273822), (6, 3136911), (9, 2091274), (18, 1045637), (53, 355122), (106, 177561), (109, 172674), (159, 118374), (181, 103986), (218, 86337), (318, 59187), (327, 57558), (362, 51993), (477, 39458), (543, 34662), (654, 28779), (954, 19729), (981, 19186), (1086, 17331), (1629, 11554), (1962, 9593), (3258, 5777)]