21653390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1949}}^1$

素因数の和:2068

約数の個数: 32

約数和(自身を含む): 42962400

約数和(自身を除く): 21309010

約数列:

[1, 2, 5, 10, 11, 22, 55, 101, 110, 202, 505, 1010, 1111, 1949, 2222, 3898, 5555, 9745, 11110, 19490, 21439, 42878, 107195, 196849, 214390, 393698, 984245, 1968490, 2165339, 4330678, 10826695, 21653390]

約数ペア:

[(1, 21653390), (2, 10826695), (5, 4330678), (10, 2165339), (11, 1968490), (22, 984245), (55, 393698), (101, 214390), (110, 196849), (202, 107195), (505, 42878), (1010, 21439), (1111, 19490), (1949, 11110), (2222, 9745), (3898, 5555)]