21217672

素因数分解:

$2^3\times 7^1\times {\mathrm{107}}^1\times {\mathrm{3541}}^1$

素因数の和:3661

約数の個数: 32

約数和(自身を含む): 45904320

約数和(自身を除く): 24686648

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 107, 214, 428, 749, 856, 1498, 2996, 3541, 5992, 7082, 14164, 24787, 28328, 49574, 99148, 198296, 378887, 757774, 1515548, 2652209, 3031096, 5304418, 10608836, 21217672]

約数ペア:

[(1, 21217672), (2, 10608836), (4, 5304418), (7, 3031096), (8, 2652209), (14, 1515548), (28, 757774), (56, 378887), (107, 198296), (214, 99148), (428, 49574), (749, 28328), (856, 24787), (1498, 14164), (2996, 7082), (3541, 5992)]