18081887

素因数分解:

${\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{389}}^1$

素因数の和:502

約数の個数: 16

約数和(自身を含む): 19768320

約数和(自身を除く): 1686433

約数列:

[1, 23, 43, 47, 389, 989, 1081, 2021, 8947, 16727, 18283, 46483, 384721, 420509, 786169, 18081887]

約数ペア:

[(1, 18081887), (23, 786169), (43, 420509), (47, 384721), (389, 46483), (989, 18283), (1081, 16727), (2021, 8947)]