20889224

素因数分解:

$2^3\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{251}}^1$

素因数の和:461

約数の個数: 32

約数和(自身を含む): 40098240

約数和(自身を除く): 19209016

約数列:

[1, 2, 4, 8, 101, 103, 202, 206, 251, 404, 412, 502, 808, 824, 1004, 2008, 10403, 20806, 25351, 25853, 41612, 50702, 51706, 83224, 101404, 103412, 202808, 206824, 2611153, 5222306, 10444612, 20889224]

約数ペア:

[(1, 20889224), (2, 10444612), (4, 5222306), (8, 2611153), (101, 206824), (103, 202808), (202, 103412), (206, 101404), (251, 83224), (404, 51706), (412, 50702), (502, 41612), (808, 25853), (824, 25351), (1004, 20806), (2008, 10403)]