18910239

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{8623}}^1$

素因数の和:8686

約数の個数: 16

約数和(自身を含む): 27320832

約数和(自身を除く): 8410593

約数列:

[1, 3, 17, 43, 51, 129, 731, 2193, 8623, 25869, 146591, 370789, 439773, 1112367, 6303413, 18910239]

約数ペア:

[(1, 18910239), (3, 6303413), (17, 1112367), (43, 439773), (51, 370789), (129, 146591), (731, 25869), (2193, 8623)]