28385889

素因数分解:

$3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{12401}}^1$

素因数の和:12520

約数の個数: 16

約数和(自身を含む): 43655040

約数和(自身を除く): 15269151

約数列:

[1, 3, 7, 21, 109, 327, 763, 2289, 12401, 37203, 86807, 260421, 1351709, 4055127, 9461963, 28385889]

約数ペア:

[(1, 28385889), (3, 9461963), (7, 4055127), (21, 1351709), (109, 260421), (327, 86807), (763, 37203), (2289, 12401)]