18999972

素因数分解:

$2^2\times 3^2\times {\mathrm{97}}^1\times {\mathrm{5441}}^1$

素因数の和:5548

約数の個数: 36

約数和(自身を含む): 48531756

約数和(自身を除く): 29531784

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 97, 194, 291, 388, 582, 873, 1164, 1746, 3492, 5441, 10882, 16323, 21764, 32646, 48969, 65292, 97938, 195876, 527777, 1055554, 1583331, 2111108, 3166662, 4749993, 6333324, 9499986, 18999972]

約数ペア:

[(1, 18999972), (2, 9499986), (3, 6333324), (4, 4749993), (6, 3166662), (9, 2111108), (12, 1583331), (18, 1055554), (36, 527777), (97, 195876), (194, 97938), (291, 65292), (388, 48969), (582, 32646), (873, 21764), (1164, 16323), (1746, 10882), (3492, 5441)]