28997217

素因数分解:

$3^3\times {\mathrm{421}}^1\times {\mathrm{2551}}^1$

素因数の和:2981

約数の個数: 16

約数和(自身を含む): 43077760

約数和(自身を除く): 14080543

約数列:

[1, 3, 9, 27, 421, 1263, 2551, 3789, 7653, 11367, 22959, 68877, 1073971, 3221913, 9665739, 28997217]

約数ペア:

[(1, 28997217), (3, 9665739), (9, 3221913), (27, 1073971), (421, 68877), (1263, 22959), (2551, 11367), (3789, 7653)]