21046388

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{6737}}^1$

素因数の和:6823

約数の個数: 24

約数和(自身を含む): 40751424

約数和(自身を除く): 19705036

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 284, 781, 1562, 3124, 6737, 13474, 26948, 74107, 148214, 296428, 478327, 956654, 1913308, 5261597, 10523194, 21046388]

約数ペア:

[(1, 21046388), (2, 10523194), (4, 5261597), (11, 1913308), (22, 956654), (44, 478327), (71, 296428), (142, 148214), (284, 74107), (781, 26948), (1562, 13474), (3124, 6737)]