18026659

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:275

約数の個数: 24

約数和(自身を含む): 22023888

約数和(自身を除く): 3997229

約数列:

[1, 7, 37, 49, 61, 163, 259, 427, 1141, 1813, 2257, 2989, 6031, 7987, 9943, 15799, 42217, 69601, 110593, 295519, 367891, 487207, 2575237, 18026659]

約数ペア:

[(1, 18026659), (7, 2575237), (37, 487207), (49, 367891), (61, 295519), (163, 110593), (259, 69601), (427, 42217), (1141, 15799), (1813, 9943), (2257, 7987), (2989, 6031)]