21241036780

素因数分解:

$2^2\times 5^1\times {\mathrm{19009}}^1\times {\mathrm{55871}}^1$

素因数の和:74889

約数の個数: 24

約数和(自身を含む): 44609322240

約数和(自身を除く): 23368285460

約数列:

[1, 2, 4, 5, 10, 20, 19009, 38018, 55871, 76036, 95045, 111742, 190090, 223484, 279355, 380180, 558710, 1117420, 1062051839, 2124103678, 4248207356, 5310259195, 10620518390, 21241036780]

約数ペア:

[(1, 21241036780), (2, 10620518390), (4, 5310259195), (5, 4248207356), (10, 2124103678), (20, 1062051839), (19009, 1117420), (38018, 558710), (55871, 380180), (76036, 279355), (95045, 223484), (111742, 190090)]