21560392

素因数分解:

$2^3\times 7^2\times {\mathrm{55001}}^1$

素因数の和:55021

約数の個数: 24

約数和(自身を含む): 47026710

約数和(自身を除く): 25466318

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 55001, 110002, 220004, 385007, 440008, 770014, 1540028, 2695049, 3080056, 5390098, 10780196, 21560392]

約数ペア:

[(1, 21560392), (2, 10780196), (4, 5390098), (7, 3080056), (8, 2695049), (14, 1540028), (28, 770014), (49, 440008), (56, 385007), (98, 220004), (196, 110002), (392, 55001)]