21247756

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{1619}}^1$

素因数の和:1833

約数の個数: 24

約数和(自身を含む): 39599280

約数和(自身を除く): 18351524

約数列:

[1, 2, 4, 17, 34, 68, 193, 386, 772, 1619, 3238, 3281, 6476, 6562, 13124, 27523, 55046, 110092, 312467, 624934, 1249868, 5311939, 10623878, 21247756]

約数ペア:

[(1, 21247756), (2, 10623878), (4, 5311939), (17, 1249868), (34, 624934), (68, 312467), (193, 110092), (386, 55046), (772, 27523), (1619, 13124), (3238, 6562), (3281, 6476)]