21540752

素因数分解:

$2^4\times {\mathrm{263}}^1\times {\mathrm{5119}}^1$

素因数の和:5390

約数の個数: 20

約数和(自身を含む): 41902080

約数和(自身を除く): 20361328

約数列:

[1, 2, 4, 8, 16, 263, 526, 1052, 2104, 4208, 5119, 10238, 20476, 40952, 81904, 1346297, 2692594, 5385188, 10770376, 21540752]

約数ペア:

[(1, 21540752), (2, 10770376), (4, 5385188), (8, 2692594), (16, 1346297), (263, 81904), (526, 40952), (1052, 20476), (2104, 10238), (4208, 5119)]