21899185

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{5171}}^1$

素因数の和:5205

約数の個数: 24

約数和(自身を含む): 33018048

約数和(自身を除く): 11118863

約数列:

[1, 5, 7, 11, 35, 55, 77, 121, 385, 605, 847, 4235, 5171, 25855, 36197, 56881, 180985, 284405, 398167, 625691, 1990835, 3128455, 4379837, 21899185]

約数ペア:

[(1, 21899185), (5, 4379837), (7, 3128455), (11, 1990835), (35, 625691), (55, 398167), (77, 284405), (121, 180985), (385, 56881), (605, 36197), (847, 25855), (4235, 5171)]