21757834

素因数分解:

$2^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{2417}}^1$

素因数の和:3069

約数の個数: 16

約数和(自身を含む): 37372608

約数和(自身を除く): 15614774

約数列:

[1, 2, 7, 14, 643, 1286, 2417, 4501, 4834, 9002, 16919, 33838, 1554131, 3108262, 10878917, 21757834]

約数ペア:

[(1, 21757834), (2, 10878917), (7, 3108262), (14, 1554131), (643, 33838), (1286, 16919), (2417, 9002), (4501, 4834)]