21276616

素因数分解:

$2^3\times {\mathrm{1117}}^1\times {\mathrm{2381}}^1$

素因数の和:3504

約数の個数: 16

約数和(自身を含む): 39946140

約数和(自身を除く): 18669524

約数列:

[1, 2, 4, 8, 1117, 2234, 2381, 4468, 4762, 8936, 9524, 19048, 2659577, 5319154, 10638308, 21276616]

約数ペア:

[(1, 21276616), (2, 10638308), (4, 5319154), (8, 2659577), (1117, 19048), (2234, 9524), (2381, 8936), (4468, 4762)]