2154257

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:488

約数の個数: 16

約数和(自身を含む): 2673792

約数和(自身を除く): 519535

約数列:

[1, 7, 17, 43, 119, 301, 421, 731, 2947, 5117, 7157, 18103, 50099, 126721, 307751, 2154257]

約数ペア:

[(1, 2154257), (7, 307751), (17, 126721), (43, 50099), (119, 18103), (301, 7157), (421, 5117), (731, 2947)]