19561168

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{111143}}^1$

素因数の和:111162

約数の個数: 20

約数和(自身を含む): 41345568

約数和(自身を除く): 21784400

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 111143, 222286, 444572, 889144, 1222573, 1778288, 2445146, 4890292, 9780584, 19561168]

約数ペア:

[(1, 19561168), (2, 9780584), (4, 4890292), (8, 2445146), (11, 1778288), (16, 1222573), (22, 889144), (44, 444572), (88, 222286), (176, 111143)]