18694288

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{68729}}^1$

素因数の和:68754

約数の個数: 20

約数和(自身を含む): 38351340

約数和(自身を除く): 19657052

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 68729, 137458, 274916, 549832, 1099664, 1168393, 2336786, 4673572, 9347144, 18694288]

約数ペア:

[(1, 18694288), (2, 9347144), (4, 4673572), (8, 2336786), (16, 1168393), (17, 1099664), (34, 549832), (68, 274916), (136, 137458), (272, 68729)]