20391116

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{1151}}^1$

素因数の和:1301

約数の個数: 24

約数和(自身を含む): 36900864

約数和(自身を除く): 16509748

約数列:

[1, 2, 4, 43, 86, 103, 172, 206, 412, 1151, 2302, 4429, 4604, 8858, 17716, 49493, 98986, 118553, 197972, 237106, 474212, 5097779, 10195558, 20391116]

約数ペア:

[(1, 20391116), (2, 10195558), (4, 5097779), (43, 474212), (86, 237106), (103, 197972), (172, 118553), (206, 98986), (412, 49493), (1151, 17716), (2302, 8858), (4429, 4604)]