20986143

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{17891}}^1$

素因数の和:17934

約数の個数: 16

約数和(自身を含む): 30917376

約数和(自身を除く): 9931233

約数列:

[1, 3, 17, 23, 51, 69, 391, 1173, 17891, 53673, 304147, 411493, 912441, 1234479, 6995381, 20986143]

約数ペア:

[(1, 20986143), (3, 6995381), (17, 1234479), (23, 912441), (51, 411493), (69, 304147), (391, 53673), (1173, 17891)]