18905974

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{353}}^1\times {\mathrm{439}}^1$

素因数の和:855

約数の個数: 16

約数和(自身を含む): 28971360

約数和(自身を除く): 10065386

約数列:

[1, 2, 61, 122, 353, 439, 706, 878, 21533, 26779, 43066, 53558, 154967, 309934, 9452987, 18905974]

約数ペア:

[(1, 18905974), (2, 9452987), (61, 309934), (122, 154967), (353, 53558), (439, 43066), (706, 26779), (878, 21533)]