21059396

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{5077}}^1$

素因数の和:5159

約数の個数: 24

約数和(自身を含む): 39669336

約数和(自身を除く): 18609940

約数列:

[1, 2, 4, 17, 34, 61, 68, 122, 244, 1037, 2074, 4148, 5077, 10154, 20308, 86309, 172618, 309697, 345236, 619394, 1238788, 5264849, 10529698, 21059396]

約数ペア:

[(1, 21059396), (2, 10529698), (4, 5264849), (17, 1238788), (34, 619394), (61, 345236), (68, 309697), (122, 172618), (244, 86309), (1037, 20308), (2074, 10154), (4148, 5077)]