21659770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{196907}}^1$

素因数の和:196925

約数の個数: 16

約数和(自身を含む): 42532128

約数和(自身を除く): 20872358

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 196907, 393814, 984535, 1969070, 2165977, 4331954, 10829885, 21659770]

約数ペア:

[(1, 21659770), (2, 10829885), (5, 4331954), (10, 2165977), (11, 1969070), (22, 984535), (55, 393814), (110, 196907)]