20690384

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9043}}^1$

素因数の和:9075

約数の個数: 40

約数和(自身を含む): 47101152

約数和(自身を除く): 26410768

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 1144, 2288, 9043, 18086, 36172, 72344, 99473, 117559, 144688, 198946, 235118, 397892, 470236, 795784, 940472, 1293149, 1591568, 1880944, 2586298, 5172596, 10345192, 20690384]

約数ペア:

[(1, 20690384), (2, 10345192), (4, 5172596), (8, 2586298), (11, 1880944), (13, 1591568), (16, 1293149), (22, 940472), (26, 795784), (44, 470236), (52, 397892), (88, 235118), (104, 198946), (143, 144688), (176, 117559), (208, 99473), (286, 72344), (572, 36172), (1144, 18086), (2288, 9043)]