20902544

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{100493}}^1$

素因数の和:100514

約数の個数: 20

約数和(自身を含む): 43614396

約数和(自身を除く): 22711852

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 100493, 200986, 401972, 803944, 1306409, 1607888, 2612818, 5225636, 10451272, 20902544]

約数ペア:

[(1, 20902544), (2, 10451272), (4, 5225636), (8, 2612818), (13, 1607888), (16, 1306409), (26, 803944), (52, 401972), (104, 200986), (208, 100493)]