19399888

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{29573}}^1$

素因数の和:29622

約数の個数: 20

約数和(自身を含む): 38505348

約数和(自身を除く): 19105460

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 29573, 59146, 118292, 236584, 473168, 1212493, 2424986, 4849972, 9699944, 19399888]

約数ペア:

[(1, 19399888), (2, 9699944), (4, 4849972), (8, 2424986), (16, 1212493), (41, 473168), (82, 236584), (164, 118292), (328, 59146), (656, 29573)]