21809011

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{1399}}^1$

素因数の和:1554

約数の個数: 16

約数和(自身を含む): 26611200

約数和(自身を除く): 4802189

約数列:

[1, 7, 17, 119, 131, 917, 1399, 2227, 9793, 15589, 23783, 166481, 183269, 1282883, 3115573, 21809011]

約数ペア:

[(1, 21809011), (7, 3115573), (17, 1282883), (119, 183269), (131, 166481), (917, 23783), (1399, 15589), (2227, 9793)]