861621215824

素因数分解:

$2^4\times {\mathrm{641}}^1\times {\mathrm{84011429}}^1$

素因数の和:84012078

約数の個数: 20

約数和(自身を含む): 1671995479860

約数和(自身を除く): 810374264036

約数列:

[1, 2, 4, 8, 16, 641, 1282, 2564, 5128, 10256, 84011429, 168022858, 336045716, 672091432, 1344182864, 53851325989, 107702651978, 215405303956, 430810607912, 861621215824]

約数ペア:

[(1, 861621215824), (2, 430810607912), (4, 215405303956), (8, 107702651978), (16, 53851325989), (641, 1344182864), (1282, 672091432), (2564, 336045716), (5128, 168022858), (10256, 84011429)]