21528958

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{9689}}^1$

素因数の和:9803

約数の個数: 16

約数和(自身を含む): 35581680

約数和(自身を除く): 14052722

約数列:

[1, 2, 11, 22, 101, 202, 1111, 2222, 9689, 19378, 106579, 213158, 978589, 1957178, 10764479, 21528958]

約数ペア:

[(1, 21528958), (2, 10764479), (11, 1957178), (22, 978589), (101, 213158), (202, 106579), (1111, 19378), (2222, 9689)]