20408908

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23087}}^1$

素因数の和:23121

約数の個数: 24

約数和(自身を含む): 40727232

約数和(自身を除く): 20318324

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 442, 884, 23087, 46174, 92348, 300131, 392479, 600262, 784958, 1200524, 1569916, 5102227, 10204454, 20408908]

約数ペア:

[(1, 20408908), (2, 10204454), (4, 5102227), (13, 1569916), (17, 1200524), (26, 784958), (34, 600262), (52, 392479), (68, 300131), (221, 92348), (442, 46174), (884, 23087)]