12221503

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2137}}^1$

素因数の和:2206

約数の個数: 16

約数和(自身を含む): 15051520

約数和(自身を除く): 2830017

約数列:

[1, 7, 19, 43, 133, 301, 817, 2137, 5719, 14959, 40603, 91891, 284221, 643237, 1745929, 12221503]

約数ペア:

[(1, 12221503), (7, 1745929), (19, 643237), (43, 284221), (133, 91891), (301, 40603), (817, 14959), (2137, 5719)]