21506894

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{311}}^1\times {\mathrm{487}}^1$

素因数の和:871

約数の個数: 16

約数和(自身を含む): 32887296

約数和(自身を除く): 11380402

約数列:

[1, 2, 71, 142, 311, 487, 622, 974, 22081, 34577, 44162, 69154, 151457, 302914, 10753447, 21506894]

約数ペア:

[(1, 21506894), (2, 10753447), (71, 302914), (142, 151457), (311, 69154), (487, 44162), (622, 34577), (974, 22081)]