18995889

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{10861}}^1$

素因数の和:10928

約数の個数: 16

約数和(自身を含む): 28154304

約数和(自身を除く): 9158415

約数列:

[1, 3, 11, 33, 53, 159, 583, 1749, 10861, 32583, 119471, 358413, 575633, 1726899, 6331963, 18995889]

約数ペア:

[(1, 18995889), (3, 6331963), (11, 1726899), (33, 575633), (53, 358413), (159, 119471), (583, 32583), (1749, 10861)]