20974804918

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{907}}^1\times {\mathrm{680161}}^1$

素因数の和:681087

約数の個数: 16

約数和(自身を含む): 33349703184

約数和(自身を除く): 12374898266

約数列:

[1, 2, 17, 34, 907, 1814, 15419, 30838, 680161, 1360322, 11562737, 23125474, 616906027, 1233812054, 10487402459, 20974804918]

約数ペア:

[(1, 20974804918), (2, 10487402459), (17, 1233812054), (34, 616906027), (907, 23125474), (1814, 11562737), (15419, 1360322), (30838, 680161)]