21252136

素因数分解:

$2^3\times {\mathrm{113}}^1\times {\mathrm{23509}}^1$

素因数の和:23628

約数の個数: 16

約数和(自身を含む): 40202100

約数和(自身を除く): 18949964

約数列:

[1, 2, 4, 8, 113, 226, 452, 904, 23509, 47018, 94036, 188072, 2656517, 5313034, 10626068, 21252136]

約数ペア:

[(1, 21252136), (2, 10626068), (4, 5313034), (8, 2656517), (113, 188072), (226, 94036), (452, 47018), (904, 23509)]