18999736

素因数分解:

$2^3\times 7^1\times {\mathrm{491}}^1\times {\mathrm{691}}^1$

素因数の和:1195

約数の個数: 32

約数和(自身を含む): 40855680

約数和(自身を除く): 21855944

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 491, 691, 982, 1382, 1964, 2764, 3437, 3928, 4837, 5528, 6874, 9674, 13748, 19348, 27496, 38696, 339281, 678562, 1357124, 2374967, 2714248, 4749934, 9499868, 18999736]

約数ペア:

[(1, 18999736), (2, 9499868), (4, 4749934), (7, 2714248), (8, 2374967), (14, 1357124), (28, 678562), (56, 339281), (491, 38696), (691, 27496), (982, 19348), (1382, 13748), (1964, 9674), (2764, 6874), (3437, 5528), (3928, 4837)]