16981195

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{6301}}^1$

素因数の和:6331

約数の個数: 24

約数和(自身を含む): 25863408

約数和(自身を除く): 8882213

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 539, 2695, 6301, 31505, 44107, 69311, 220535, 308749, 346555, 485177, 1543745, 2425885, 3396239, 16981195]

約数ペア:

[(1, 16981195), (5, 3396239), (7, 2425885), (11, 1543745), (35, 485177), (49, 346555), (55, 308749), (77, 220535), (245, 69311), (385, 44107), (539, 31505), (2695, 6301)]