209854967

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{449}}^1\times {\mathrm{2903}}^1$

素因数の和:3382

約数の個数: 16

約数和(自身を含む): 250905600

約数和(自身を除く): 41050633

約数列:

[1, 7, 23, 161, 449, 2903, 3143, 10327, 20321, 66769, 72289, 467383, 1303447, 9124129, 29979281, 209854967]

約数ペア:

[(1, 209854967), (7, 29979281), (23, 9124129), (161, 1303447), (449, 467383), (2903, 72289), (3143, 66769), (10327, 20321)]