18939513

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{3407}}^1$

素因数の和:3536

約数の個数: 16

約数和(自身を含む): 26991360

約数和(自身を除く): 8051847

約数列:

[1, 3, 17, 51, 109, 327, 1853, 3407, 5559, 10221, 57919, 173757, 371363, 1114089, 6313171, 18939513]

約数ペア:

[(1, 18939513), (3, 6313171), (17, 1114089), (51, 371363), (109, 173757), (327, 57919), (1853, 10221), (3407, 5559)]