217767508

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{109541}}^1$

素因数の和:109623

約数の個数: 24

約数和(自身を含む): 441673344

約数和(自身を除く): 223905836

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 109541, 219082, 438164, 766787, 1533574, 3067148, 7777411, 15554822, 31109644, 54441877, 108883754, 217767508]

約数ペア:

[(1, 217767508), (2, 108883754), (4, 54441877), (7, 31109644), (14, 15554822), (28, 7777411), (71, 3067148), (142, 1533574), (284, 766787), (497, 438164), (994, 219082), (1988, 109541)]